113020531 has 16 divisors (see below), whose sum is σ = 128701440. Its totient is φ = 98388000.

The previous prime is 113020517. The next prime is 113020541. The reversal of 113020531 is 135020311.

It is a cyclic number.

It is not a de Polignac number, because 113020531 - 2¹⁷ = 112889459 is a prime.

It is a super-2 number, since 2×113020531² = 25547280855043922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (113020541) 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, 61086 + ... + 62908.

It is an arithmetic number, because the mean of its divisors is an integer number (8043840).

Almost surely, 2^113020531 is an apocalyptic number.

113020531 is a deficient number, since it is larger than the sum of its proper divisors (15680909).

113020531 is a wasteful number, since it uses less digits than its factorization.

113020531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2106.

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 113020531 is about 10631.1114658816. Note that the first 3 decimals coincide. The cubic root of 113020531 is about 483.4880908581.

Adding to 113020531 its reverse (135020311), we get a palindrome (248040842).

The spelling of 113020531 in words is "one hundred thirteen million, twenty thousand, five hundred thirty-one".