21014185113 has 12 divisors (see below), whose sum is σ = 31174197028. Its totient is φ = 13630822560.

The previous prime is 21014185069. The next prime is 21014185123. The reversal of 21014185113 is 31158141012.

21014185113 is a `hidden beast` number, since 2 + 1 + 0 + 141 + 8 + 511 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 10624867929 + 10389317184 = 103077^2 + 101928^2 .

It is not a de Polignac number, because 21014185113 - 2¹⁴ = 21014168729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21014185123) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31552498 + ... + 31553163.

Almost surely, 2^21014185113 is an apocalyptic number.

It is an amenable number.

21014185113 is a deficient number, since it is larger than the sum of its proper divisors (10160011915).

21014185113 is a wasteful number, since it uses less digits than its factorization.

21014185113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63105704 (or 63105701 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 27.

The spelling of 21014185113 in words is "twenty-one billion, fourteen million, one hundred eighty-five thousand, one hundred thirteen".