13121032992 has 96 divisors (see below), whose sum is σ = 34661862144. Its totient is φ = 4345958400.

The previous prime is 13121032949. The next prime is 13121032997. The reversal of 13121032992 is 29923012131.

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (13121032997) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13943242 + ... + 13944182.

It is an arithmetic number, because the mean of its divisors is an integer number (361061064).

Almost surely, 2^13121032992 is an apocalyptic number.

13121032992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13121032992 is an abundant number, since it is smaller than the sum of its proper divisors (21540829152).

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

13121032992 is a wasteful number, since it uses less digits than its factorization.

13121032992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1722 (or 1714 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 33.

The spelling of 13121032992 in words is "thirteen billion, one hundred twenty-one million, thirty-two thousand, nine hundred ninety-two".