21231113124200 has 48 divisors (see below), whose sum is σ = 56414100590880. Its totient is φ = 7279238784960.

The previous prime is 21231113124157. The next prime is 21231113124227. The reversal of 21231113124200 is 242131113212.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7582539002 + ... + 7582541801.

It is an arithmetic number, because the mean of its divisors is an integer number (1175293762310).

Almost surely, 2^{21231113124200} is an apocalyptic number.

21231113124200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21231113124200 is an abundant number, since it is smaller than the sum of its proper divisors (35182987466680).

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

21231113124200 is a wasteful number, since it uses less digits than its factorization.

21231113124200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15165080826 (or 15165080817 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 21231113124200 its reverse (242131113212), we get a palindrome (21473244237412).

The spelling of 21231113124200 in words is "twenty-one trillion, two hundred thirty-one billion, one hundred thirteen million, one hundred twenty-four thousand, two hundred".