Compare 11 vs 23

Unique factors11
Total factors11
Prime factorization111231
Prime factorization1123
Divisors count22
Divisors1, 111, 23
Number of properties3630
Additive primes5th6th
Centered decagonal primes1st 
Chen primes5th9th
Class 1+ primes5th7th
Cousin primes (2nd member)2nd4th
Dihedral primes3rd 
Factorial primes 5th
Good primes2nd 
Happy primes 4th
Harmonic primes 4th
Isolated primes 2nd
Kynea primes 3rd
Left-truncatable primes 7th
Long primes 4th
Lucas primes4th 
Mills primes2nd 
Palindromic primes5th 
Pierpont primes of the 2nd kind5th7th
Prime quadruplets (1st member)2nd 
Prime quadruplets (3rd member)1st 
Prime quintuplet 1s (2nd member)1st 
Prime quintuplet 2s (1st member)2nd 
Prime quintuplet 2s (3rd member)1st 
Prime quintuplet 2s (5th member) 2nd
Prime sextuplets (6th member) 1st
Prime sextuplets (2nd member)1st 
Prime triplets (1st member)3rd 
Prime triplets (2nd member)2nd 
Prime triplets (3rd member)1st5th
Right-truncatable primes 5th
Safe primes3rd4th
Sexy primes (1st member)3rd6th
Sexy primes (2nd member)1st5th
Sexy prime quadrupletss (4th member) 1st
Sexy prime quadrupletss (1st member)2nd 
Sexy prime quadrupletss (2nd member)1st 
Sexy prime quadrupletss (3rd member) 2nd
Sexy prime triplets (1st member)3rd 
Sexy prime triplets (2nd member)1st4th
Sexy prime triplets (3rd member) 3rd
Solinas primes4th8th
Sophie germain primes4th5th
Super primes3rd 
Thabit primes3rd4th
Twin primes (1st member)3rd 
Two-sided primes 5th
Ulam primes3rd 
Wagstaff primes2nd 
Wedderburn-etherington primes3rd4th
Woodall primes 2nd
Roman numberalsXIXXIII
Base 210112101112
Base 310232123
Base 42341134
Base 5215435
Base 6156356
Base 7147327
Base 8138278
Base 9129259
Base 1011102310
Base 1110112111
Base 12b121b12
Base 13b131a13
Base 14b141914
Base 15b151815
Base 16b161716
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