23313132 has 18 divisors (see below), whose sum is σ = 58930508. Its totient is φ = 7771032.

The previous prime is 23313113. The next prime is 23313149. The reversal of 23313132 is 23131332.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 323758 + ... + 323829.

Almost surely, 2^23313132 is an apocalyptic number.

It is an amenable number.

23313132 is an abundant number, since it is smaller than the sum of its proper divisors (35617376).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23313132 is a wasteful number, since it uses less digits than its factorization.

23313132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 647597 (or 647592 counting only the distinct ones).

The product of its digits is 324, while the sum is 18.

The square root of 23313132 is about 4828.3674259526. The cubic root of 23313132 is about 285.6714730613.

Adding to 23313132 its reverse (23131332), we get a palindrome (46444464).

The spelling of 23313132 in words is "twenty-three million, three hundred thirteen thousand, one hundred thirty-two".