113012031 has 32 divisors (see below), whose sum is σ = 170263296. Its totient is φ = 66080000.

The previous prime is 113012027. The next prime is 113012047. The reversal of 113012031 is 130210311.

It is a cyclic number.

It is not a de Polignac number, because 113012031 - 2² = 113012027 is a prime.

It is a super-2 number, since 2×113012031² = 25543438301489922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 113011998 and 113012016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113012051) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 136240 + ... + 137066.

It is an arithmetic number, because the mean of its divisors is an integer number (5320728).

Almost surely, 2^113012031 is an apocalyptic number.

113012031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

113012031 is a deficient number, since it is larger than the sum of its proper divisors (57251265).

113012031 is a wasteful number, since it uses less digits than its factorization.

113012031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 983.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 113012031 is about 10630.7116883114. The cubic root of 113012031 is about 483.4759698987.

Adding to 113012031 its reverse (130210311), we get a palindrome (243222342).

The spelling of 113012031 in words is "one hundred thirteen million, twelve thousand, thirty-one".