32121012996 has 30 divisors (see below), whose sum is σ = 83970673710. Its totient is φ = 10707004224.

The previous prime is 32121012977. The next prime is 32121013007. The reversal of 32121012996 is 69921012123.

It can be written as a sum of positive squares in only one way, i.e., 20658312900 + 11462700096 = 143730^2 + 107064^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 32121012996.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 49569141 + ... + 49569788.

It is an arithmetic number, because the mean of its divisors is an integer number (2799022457).

Almost surely, 2^32121012996 is an apocalyptic number.

32121012996 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

32121012996 is an abundant number, since it is smaller than the sum of its proper divisors (51849660714).

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

32121012996 is a wasteful number, since it uses less digits than its factorization.

32121012996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99138945 (or 99138934 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The spelling of 32121012996 in words is "thirty-two billion, one hundred twenty-one million, twelve thousand, nine hundred ninety-six".