113563231 has 4 divisors (see below), whose sum is σ = 113608600. Its totient is φ = 113517864.

The previous prime is 113563223. The next prime is 113563237. The reversal of 113563231 is 132365311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132365311 = 13 ⋅10181947.

It is a cyclic number.

It is not a de Polignac number, because 113563231 - 2³ = 113563223 is a prime.

It is a super-2 number, since 2×113563231² = 25793214870318722, 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 = 113563196 and 113563205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113563237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18696 + ... + 24013.

It is an arithmetic number, because the mean of its divisors is an integer number (28402150).

Almost surely, 2^113563231 is an apocalyptic number.

113563231 is a deficient number, since it is larger than the sum of its proper divisors (45369).

113563231 is an equidigital number, since it uses as much as digits as its factorization.

113563231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45368.

The product of its digits is 1620, while the sum is 25.

The square root of 113563231 is about 10656.6050410063. The cubic root of 113563231 is about 484.2607237095.

The spelling of 113563231 in words is "one hundred thirteen million, five hundred sixty-three thousand, two hundred thirty-one".