113565123 has 12 divisors (see below), whose sum is σ = 187472688. Its totient is φ = 64894320.

The previous prime is 113565091. The next prime is 113565161. The reversal of 113565123 is 321565311.

113565123 is a `hidden beast` number, since 1 + 1 + 3 + 5 + 651 + 2 + 3 = 666.

It is not a de Polignac number, because 113565123 - 2⁵ = 113565091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (113565163) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 901248 + ... + 901373.

It is an arithmetic number, because the mean of its divisors is an integer number (15622724).

Almost surely, 2^113565123 is an apocalyptic number.

113565123 is a deficient number, since it is larger than the sum of its proper divisors (73907565).

113565123 is a wasteful number, since it uses less digits than its factorization.

113565123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1802634 (or 1802631 counting only the distinct ones).

The product of its digits is 2700, while the sum is 27.

The square root of 113565123 is about 10656.6938118724. The cubic root of 113565123 is about 484.2634130078.

The spelling of 113565123 in words is "one hundred thirteen million, five hundred sixty-five thousand, one hundred twenty-three".