13312272920 has 32 divisors (see below), whose sum is σ = 30762147600. Its totient is φ = 5180992128.

The previous prime is 13312272907. The next prime is 13312272923. The reversal of 13312272920 is 2927221331.

It is a super-2 number, since 2×13312272920² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13312272923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4495910 + ... + 4498869.

Almost surely, 2^13312272920 is an apocalyptic number.

13312272920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13312272920 is an abundant number, since it is smaller than the sum of its proper divisors (17449874680).

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

13312272920 is a wasteful number, since it uses less digits than its factorization.

13312272920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8994827 (or 8994823 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 32.

The spelling of 13312272920 in words is "thirteen billion, three hundred twelve million, two hundred seventy-two thousand, nine hundred twenty".