Compare 1231 vs 1321
| Property | 1231 | 1321 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 12311 | 13211 |
| Prime factorization | 1231 | 1321 |
| Divisors count | 2 | 2 |
| Divisors | 1, 1231 | 1, 1321 |
| Number of properties | 6 | 7 |
| Additive primes | 108th | 118th |
| Emirps | 56th | 63rd |
| Harmonic primes | 74th | |
| Lucky primes | 52nd | |
| Primes | 202nd | 216th |
| Pythagorean primes | 106th | |
| Sexy primes (1st member) | 88th | 94th |
| Twin primes (2nd member) | 42nd | 46th |
| Roman numberals | MCCXXXI | MCCCXXI |
| Base 2 | 100110011112 | 101001010012 |
| Base 3 | 12001213 | 12102213 |
| Base 4 | 1030334 | 1102214 |
| Base 5 | 144115 | 202415 |
| Base 6 | 54116 | 100416 |
| Base 7 | 34067 | 35657 |
| Base 8 | 23178 | 24518 |
| Base 9 | 16179 | 17279 |
| Base 10 | 123110 | 132110 |
| Base 11 | a1a11 | aa111 |
| Base 12 | 86712 | 92112 |
| Base 13 | 73913 | 7a813 |
| Base 14 | 63d14 | 6a514 |
| Base 15 | 57115 | 5d115 |
| Base 16 | 4cf16 | 52916 |