21313323020112 has 80 divisors (see below), whose sum is σ = 59720114668032. Its totient is φ = 6523446538240.

The previous prime is 21313323020107. The next prime is 21313323020159. The reversal of 21313323020112 is 21102032331312.

It is a super-2 number, since 2×21313323020112² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 318494208 + ... + 318561119.

Almost surely, 2^{21313323020112} is an apocalyptic number.

It is an amenable number.

21313323020112 is an abundant number, since it is smaller than the sum of its proper divisors (38406791647920).

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

21313323020112 is a wasteful number, since it uses less digits than its factorization.

21313323020112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637055396 (or 637055390 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 21313323020112 its reverse (21102032331312), we get a palindrome (42415355351424).

The spelling of 21313323020112 in words is "twenty-one trillion, three hundred thirteen billion, three hundred twenty-three million, twenty thousand, one hundred twelve".