From Wikipedia, the free encyclopedia.
One hundred thirteen (113, CXIII) is the natural number following one hundred twelve and preceding one hundred fourteen.
- Hexadecimal: 71
- Binary: 01110001
- Factors: 1, 113
- the 30th prime number, following one hundred nine and preceeding one hundred twenty-seven, a Sophie Germain prime and a permutable prime with 131 and 311.
- The atomic number of an element temporarily called ununtrium.

