113151031 has 16 divisors (see below), whose sum is σ = 138018816. Its totient is φ = 90550656.

The previous prime is 113151029. The next prime is 113151037. The reversal of 113151031 is 130151311.

It is not a de Polignac number, because 113151031 - 2¹ = 113151029 is a prime.

It is a super-2 number, since 2×113151031² = 25606311632725922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 113150996 and 113151014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113151037) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11370 + ... + 18856.

It is an arithmetic number, because the mean of its divisors is an integer number (8626176).

Almost surely, 2^113151031 is an apocalyptic number.

113151031 is a deficient number, since it is larger than the sum of its proper divisors (24867785).

113151031 is a wasteful number, since it uses less digits than its factorization.

113151031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7638.

The product of its (nonzero) digits is 45, while the sum is 16.

The square root of 113151031 is about 10637.2473413003. The cubic root of 113151031 is about 483.6741069928.

The spelling of 113151031 in words is "one hundred thirteen million, one hundred fifty-one thousand, thirty-one".