| Next prime | 3 |
| Previous prime | nothing |
| The only even prime | |
| Octal | (2)8 |
| Hexadecimal | (2)16 |
| Prime gap | 1 |
| 1st Factorial prime | 1! + 1 |
| 1st Double factorial prime | 1!! + 1 , 3!! - 1 |
| 1st Sophie Germain prime | |
| 1st Left-truncatable prime | |
| 1st Right-truncatable prime | |
| 1st Two-sided prime |