23181257932 has 12 divisors (see below), whose sum is σ = 46362515920. Its totient is φ = 9934824816.

The previous prime is 23181257921. The next prime is 23181257999. The reversal of 23181257932 is 23975218132.

23181257932 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 413951007 + ... + 413951062.

Almost surely, 2^23181257932 is an apocalyptic number.

It is an amenable number.

23181257932 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

23181257932 is a wasteful number, since it uses less digits than its factorization.

23181257932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 827902080 (or 827902078 counting only the distinct ones).

The product of its digits is 181440, while the sum is 43.

The spelling of 23181257932 in words is "twenty-three billion, one hundred eighty-one million, two hundred fifty-seven thousand, nine hundred thirty-two".