23113431 has 24 divisors (see below), whose sum is σ = 37774464. Its totient is φ = 14006520.

The previous prime is 23113417. The next prime is 23113471. The reversal of 23113431 is 13431132.

23113431 is a `hidden beast` number, since 231 + 1 + 3 + 431 = 666.

It is not a de Polignac number, because 23113431 - 2⁹ = 23112919 is a prime.

It is a super-2 number, since 2×23113431² = 1068461385183522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23113471) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1651 + ... + 6996.

It is an arithmetic number, because the mean of its divisors is an integer number (1573936).

Almost surely, 2^23113431 is an apocalyptic number.

23113431 is a deficient number, since it is larger than the sum of its proper divisors (14661033).

23113431 is an equidigital number, since it uses as much as digits as its factorization.

23113431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8673 (or 8661 counting only the distinct ones).

The product of its digits is 216, while the sum is 18.

The square root of 23113431 is about 4807.6429775931. The cubic root of 23113431 is about 284.8534426534.

Adding to 23113431 its reverse (13431132), we get a palindrome (36544563).

The spelling of 23113431 in words is "twenty-three million, one hundred thirteen thousand, four hundred thirty-one".