21323312023112 has 64 divisors (see below), whose sum is σ = 45712702771200. Its totient is φ = 9230163595840.

The previous prime is 21323312023087. The next prime is 21323312023129. The reversal of 21323312023112 is 21132021332312.

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, 22745912 + ... + 23664807.

It is an arithmetic number, because the mean of its divisors is an integer number (714260980800).

Almost surely, 2^{21323312023112} is an apocalyptic number.

21323312023112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21323312023112 is an abundant number, since it is smaller than the sum of its proper divisors (24389390748088).

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

21323312023112 is a wasteful number, since it uses less digits than its factorization.

21323312023112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46410986 (or 46410982 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 21323312023112 its reverse (21132021332312), we get a palindrome (42455333355424).

The spelling of 21323312023112 in words is "twenty-one trillion, three hundred twenty-three billion, three hundred twelve million, twenty-three thousand, one hundred twelve".