23116731 has 32 divisors (see below), whose sum is σ = 35389440. Its totient is φ = 13293600.

The previous prime is 23116721. The next prime is 23116739. The reversal of 23116731 is 13761132.

It is not a de Polignac number, because 23116731 - 2⁷ = 23116603 is a prime.

It is a super-2 number, since 2×23116731² = 1068766504252722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23116739) 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, 60166 + ... + 60548.

It is an arithmetic number, because the mean of its divisors is an integer number (1105920).

Almost surely, 2^23116731 is an apocalyptic number.

23116731 is a deficient number, since it is larger than the sum of its proper divisors (12272709).

23116731 is a wasteful number, since it uses less digits than its factorization.

23116731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487.

The product of its digits is 756, while the sum is 24.

The square root of 23116731 is about 4807.9861688653. The cubic root of 23116731 is about 284.8669985757.

Adding to 23116731 its reverse (13761132), we get a palindrome (36877863).

The spelling of 23116731 in words is "twenty-three million, one hundred sixteen thousand, seven hundred thirty-one".