113531259136 has 27 divisors (see below), whose sum is σ = 226629798451. Its totient is φ = 56762934016.

The previous prime is 113531259109. The next prime is 113531259139. The reversal of 113531259136 is 631952135311.

The square root of 113531259136 is 336944.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113531259139) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 5380575 + ... + 5401633.

Almost surely, 2^113531259136 is an apocalyptic number.

113531259136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

113531259136 is the 336944-th square number.

It is an amenable number.

113531259136 is a deficient number, since it is larger than the sum of its proper divisors (113098539315).

113531259136 is an frugal number, since it uses more digits than its factorization.

113531259136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42134 (or 21061 counting only the distinct ones).

The product of its digits is 72900, while the sum is 40.

The spelling of 113531259136 in words is "one hundred thirteen billion, five hundred thirty-one million, two hundred fifty-nine thousand, one hundred thirty-six".