| Next prime | 311 |
| Previous prime | 293 |
| Octal | (463)8 |
| Hexadecimal | (133)16 |
| Prime gap | 4 |
| 18th Prime triplet (the smallest number) | The others are 311 and 313 . |
| 18th Cousin prime (the small number) | The big number is 311 . |
| 35th Sexy prime (the small number) | The big number is 313 . |
| 29th Prime of the Form 3n+1 | 82 + 3 * 92 |
| 33rd Prime of the Form 4n+3 |