23381312 has 14 divisors (see below), whose sum is σ = 46397418. Its totient is φ = 11690624.

The previous prime is 23381297. The next prime is 23381333. The reversal of 23381312 is 21318332.

It can be written as a sum of positive squares in only one way, i.e., 15178816 + 8202496 = 3896^2 + 2864^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 182603 + ... + 182730.

Almost surely, 2^23381312 is an apocalyptic number.

It is an amenable number.

23381312 is a deficient number, since it is larger than the sum of its proper divisors (23016106).

23381312 is an equidigital number, since it uses as much as digits as its factorization.

23381312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365345 (or 365335 counting only the distinct ones).

The product of its digits is 864, while the sum is 23.

The square root of 23381312 is about 4835.4226288919. The cubic root of 23381312 is about 285.9496871412.

Adding to 23381312 its reverse (21318332), we get a palindrome (44699644).

The spelling of 23381312 in words is "twenty-three million, three hundred eighty-one thousand, three hundred twelve".