21320003111000 has 128 divisors (see below), whose sum is σ = 56790421608960. Its totient is φ = 7415653168000.

The previous prime is 21320003110933. The next prime is 21320003111041. The reversal of 21320003111000 is 11130002312.

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, 41881394 + ... + 42387393.

It is an arithmetic number, because the mean of its divisors is an integer number (443675168820).

Almost surely, 2^{21320003111000} is an apocalyptic number.

21320003111000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21320003111000 is an abundant number, since it is smaller than the sum of its proper divisors (35470418497960).

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

21320003111000 is a wasteful number, since it uses less digits than its factorization.

21320003111000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84268842 (or 84268828 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 21320003111000 its reverse (11130002312), we get a palindrome (21331133113312).

The spelling of 21320003111000 in words is "twenty-one trillion, three hundred twenty billion, three million, one hundred eleven thousand".