21203233113200 has 30 divisors (see below), whose sum is σ = 50940767555424. Its totient is φ = 8481293245120.

The previous prime is 21203233113173. The next prime is 21203233113247. The reversal of 21203233113200 is 231133230212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 26504040992 + ... + 26504041791.

Almost surely, 2^{21203233113200} is an apocalyptic number.

21203233113200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21203233113200 is an abundant number, since it is smaller than the sum of its proper divisors (29737534442224).

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

21203233113200 is a wasteful number, since it uses less digits than its factorization.

21203233113200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53008082801 (or 53008082790 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 21203233113200 its reverse (231133230212), we get a palindrome (21434366343412).

The spelling of 21203233113200 in words is "twenty-one trillion, two hundred three billion, two hundred thirty-three million, one hundred thirteen thousand, two hundred".