| Next prime | 317 |
| Previous prime | 311 |
| Octal | (471)8 |
| Hexadecimal | (139)16 |
| Prime gap | 4 |
| 19th Cousin prime (the small number) | The big number is 317 . |
| 30th Prime of the Form 3n+1 | 112 + 3 * 82 |
| 30th Prime of the Form 4n+1 | 122 + 132 |
| 17th Euler prime number | |
| 23rd Left-truncatable prime | |
| 18th Right-truncatable prime | |
| 9th Two-sided prime |