32001213120 has 56 divisors (see below), whose sum is σ = 101603854704. Its totient is φ = 8533656576.

The previous prime is 32001213077. The next prime is 32001213157. The reversal of 32001213120 is 2131210023.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 32001213120.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16666339 + ... + 16668258.

Almost surely, 2^32001213120 is an apocalyptic number.

32001213120 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

32001213120 is an abundant number, since it is smaller than the sum of its proper divisors (69602641584).

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

32001213120 is a wasteful number, since it uses less digits than its factorization.

32001213120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33334617 (or 33334607 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 32001213120 its reverse (2131210023), we get a palindrome (34132423143).

The spelling of 32001213120 in words is "thirty-two billion, one million, two hundred thirteen thousand, one hundred twenty".