23131168 has 12 divisors (see below), whose sum is σ = 45539550. Its totient is φ = 11565568.

The previous prime is 23131111. The next prime is 23131181. The reversal of 23131168 is 86113132.

It can be written as a sum of positive squares in only one way, i.e., 16224784 + 6906384 = 4028^2 + 2628^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361393 + ... + 361456.

Almost surely, 2^23131168 is an apocalyptic number.

It is an amenable number.

23131168 is a deficient number, since it is larger than the sum of its proper divisors (22408382).

23131168 is an equidigital number, since it uses as much as digits as its factorization.

23131168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 722859 (or 722851 counting only the distinct ones).

The product of its digits is 864, while the sum is 25.

The square root of 23131168 is about 4809.4872907619. The cubic root of 23131168 is about 284.9262885190.

It can be divided in two parts, 2313 and 1168, that added together give a square (3481 = 59²).

The spelling of 23131168 in words is "twenty-three million, one hundred thirty-one thousand, one hundred sixty-eight".