113242631 has 2 divisors, whose sum is σ = 113242632. Its totient is φ = 113242630.

The previous prime is 113242589. The next prime is 113242667. The reversal of 113242631 is 136242311.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 113242631 - 2⁶ = 113242567 is a prime.

It is a super-2 number, since 2×113242631² = 25647786951604322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 113242597 and 113242606.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113242691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56621315 + 56621316.

It is an arithmetic number, because the mean of its divisors is an integer number (56621316).

Almost surely, 2^113242631 is an apocalyptic number.

113242631 is a deficient number, since it is larger than the sum of its proper divisors (1).

113242631 is an equidigital number, since it uses as much as digits as its factorization.

113242631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864, while the sum is 23.

The square root of 113242631 is about 10641.5520954417. The cubic root of 113242631 is about 483.8045892276.

Adding to 113242631 its reverse (136242311), we get a palindrome (249484942).

The spelling of 113242631 in words is "one hundred thirteen million, two hundred forty-two thousand, six hundred thirty-one".