321120132020 has 24 divisors (see below), whose sum is σ = 709844503200. Its totient is φ = 121687628832.

The previous prime is 321120131957. The next prime is 321120132043. The reversal of 321120132020 is 20231021123.

It is a self number, because there is not a number n which added to its sum of digits gives 321120132020.

It is a congruent number.

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, 422526110 + ... + 422526869.

It is an arithmetic number, because the mean of its divisors is an integer number (29576854300).

Almost surely, 2^321120132020 is an apocalyptic number.

It is an amenable number.

321120132020 is an abundant number, since it is smaller than the sum of its proper divisors (388724371180).

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

321120132020 is a wasteful number, since it uses less digits than its factorization.

321120132020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 845053007 (or 845053005 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 321120132020 its reverse (20231021123), we get a palindrome (341351153143).

The spelling of 321120132020 in words is "three hundred twenty-one billion, one hundred twenty million, one hundred thirty-two thousand, twenty".