21320330311000 has 128 divisors (see below), whose sum is σ = 57018753792000. Its totient is φ = 7309558435200.

The previous prime is 21320330310949. The next prime is 21320330311043. The reversal of 21320330311000 is 11303302312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 323360037 + ... + 323425963.

It is an arithmetic number, because the mean of its divisors is an integer number (445459014000).

Almost surely, 2^{21320330311000} is an apocalyptic number.

21320330311000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21320330311000 is an abundant number, since it is smaller than the sum of its proper divisors (35698423481000).

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

21320330311000 is a wasteful number, since it uses less digits than its factorization.

21320330311000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112154 (or 112140 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 21320330311000 its reverse (11303302312), we get a palindrome (21331633613312).

The spelling of 21320330311000 in words is "twenty-one trillion, three hundred twenty billion, three hundred thirty million, three hundred eleven thousand".