21011324401300 has 72 divisors (see below), whose sum is σ = 48280370108544. Its totient is φ = 7909529187840.

The previous prime is 21011324401261. The next prime is 21011324401337. The reversal of 21011324401300 is 310442311012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21636787 + ... + 22587013.

It is an arithmetic number, because the mean of its divisors is an integer number (670560695952).

Almost surely, 2^{21011324401300} is an apocalyptic number.

21011324401300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21011324401300 is an abundant number, since it is smaller than the sum of its proper divisors (27269045707244).

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

21011324401300 is a wasteful number, since it uses less digits than its factorization.

21011324401300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 963265 (or 963258 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 21011324401300 its reverse (310442311012), we get a palindrome (21321766712312).

The spelling of 21011324401300 in words is "twenty-one trillion, eleven billion, three hundred twenty-four million, four hundred one thousand, three hundred".