21232301200312 has 64 divisors (see below), whose sum is σ = 42605604961920. Its totient is φ = 9884326330368.

The previous prime is 21232301200241. The next prime is 21232301200351. The reversal of 21232301200312 is 21300210323212.

It is a super-2 number, since 2×21232301200312² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29818228 + ... + 30521980.

It is an arithmetic number, because the mean of its divisors is an integer number (665712577530).

Almost surely, 2^{21232301200312} is an apocalyptic number.

It is an amenable number.

21232301200312 is an abundant number, since it is smaller than the sum of its proper divisors (21373303761608).

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

21232301200312 is a wasteful number, since it uses less digits than its factorization.

21232301200312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 706160 (or 706156 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 21232301200312 its reverse (21300210323212), we get a palindrome (42532511523524).

The spelling of 21232301200312 in words is "twenty-one trillion, two hundred thirty-two billion, three hundred one million, two hundred thousand, three hundred twelve".