Compare 1123 vs 1131
| Property | 1123 | 1131 | 
|---|---|---|
| Type | prime | composite number | 
| Unique factors | 1 | 3 | 
| Total factors | 1 | 3 | 
| Prime factorization | 11231 | 31 × 131 × 291 | 
| Prime factorization | 1123 | 3 × 13 × 29 | 
| Divisors count | 2 | 8 | 
| Divisors | 1, 1123 | 1, 3, 13, 29, 39, 87, 377, 1131 | 
| Number of properties | 7 | 0 | 
| Additive primes | 101st | |
| Isolated primes | 109th | |
| Lucky primes | 50th | |
| Primes | 188th | |
| Sexy primes (1st member) | 83rd | |
| Sexy primes (2nd member) | 82nd | |
| Sexy prime triplets (2nd member) | 31st | |
| Roman numberals | MCXXIII | MCXXXI | 
| Base 2 | 100011000112 | 100011010112 | 
| Base 3 | 11121213 | 11122203 | 
| Base 4 | 1012034 | 1012234 | 
| Base 5 | 134435 | 140115 | 
| Base 6 | 51116 | 51236 | 
| Base 7 | 31637 | 32047 | 
| Base 8 | 21438 | 21538 | 
| Base 9 | 14779 | 14869 | 
| Base 10 | 112310 | 113110 | 
| Base 11 | 93111 | 93911 | 
| Base 12 | 79712 | 7a312 | 
| Base 13 | 68513 | 69013 | 
| Base 14 | 5a314 | 5ab14 | 
| Base 15 | 4ed15 | 50615 | 
| Base 16 | 46316 | 46b16 |