113433231 has 32 divisors (see below), whose sum is σ = 168099840. Its totient is φ = 67723776.

The previous prime is 113433209. The next prime is 113433233. The reversal of 113433231 is 132334311.

It is not a de Polignac number, because 113433231 - 2⁹ = 113432719 is a prime.

It is a super-2 number, since 2×113433231² = 25734195790198722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 113433198 and 113433207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113433233) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 88050 + ... + 89328.

It is an arithmetic number, because the mean of its divisors is an integer number (5253120).

Almost surely, 2^113433231 is an apocalyptic number.

113433231 is a deficient number, since it is larger than the sum of its proper divisors (54666609).

113433231 is a wasteful number, since it uses less digits than its factorization.

113433231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1383.

The product of its digits is 648, while the sum is 21.

The square root of 113433231 is about 10650.5037909012. The cubic root of 113433231 is about 484.0758694784.

Adding to 113433231 its reverse (132334311), we get a palindrome (245767542).

The spelling of 113433231 in words is "one hundred thirteen million, four hundred thirty-three thousand, two hundred thirty-one".