113170931 has 2 divisors, whose sum is σ = 113170932. Its totient is φ = 113170930.

The previous prime is 113170919. The next prime is 113170933. The reversal of 113170931 is 139071311.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113170931 is a prime.

It is a super-2 number, since 2×113170931² = 25615319246813522, which contains 22 as substring.

Together with 113170933, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 113170931.

It is not a weakly prime, because it can be changed into another prime (113170933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56585465 + 56585466.

It is an arithmetic number, because the mean of its divisors is an integer number (56585466).

Almost surely, 2^113170931 is an apocalyptic number.

113170931 is a deficient number, since it is larger than the sum of its proper divisors (1).

113170931 is an equidigital number, since it uses as much as digits as its factorization.

113170931 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 567, while the sum is 26.

The square root of 113170931 is about 10638.1826925467. The cubic root of 113170931 is about 483.7024601018.

The spelling of 113170931 in words is "one hundred thirteen million, one hundred seventy thousand, nine hundred thirty-one".