21313113120112 has 40 divisors (see below), whose sum is σ = 45052786829952. Its totient is φ = 9686786020800.

The previous prime is 21313113120097. The next prime is 21313113120127. The reversal of 21313113120112 is 21102131131312.

It is an interprime number because it is at equal distance from previous prime (21313113120097) and next prime (21313113120127).

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4480314 + ... + 7918297.

Almost surely, 2^{21313113120112} is an apocalyptic number.

21313113120112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21313113120112 is an abundant number, since it is smaller than the sum of its proper divisors (23739673709840).

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

21313113120112 is a wasteful number, since it uses less digits than its factorization.

21313113120112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12408397 (or 12408391 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 22.

Adding to 21313113120112 its reverse (21102131131312), we get a palindrome (42415244251424).

The spelling of 21313113120112 in words is "twenty-one trillion, three hundred thirteen billion, one hundred thirteen million, one hundred twenty thousand, one hundred twelve".