13131924172 has 6 divisors (see below), whose sum is σ = 22980867308. Its totient is φ = 6565962084.

The previous prime is 13131924137. The next prime is 13131924181. The reversal of 13131924172 is 27142913131.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1641490518 + ... + 1641490525.

Almost surely, 2^13131924172 is an apocalyptic number.

It is an amenable number.

13131924172 is a deficient number, since it is larger than the sum of its proper divisors (9848943136).

13131924172 is a wasteful number, since it uses less digits than its factorization.

13131924172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3282981047 (or 3282981045 counting only the distinct ones).

The product of its digits is 9072, while the sum is 34.

The spelling of 13131924172 in words is "thirteen billion, one hundred thirty-one million, nine hundred twenty-four thousand, one hundred seventy-two".