21112330113 has 48 divisors (see below), whose sum is σ = 35148072960. Its totient is φ = 11961970272.

The previous prime is 21112330097. The next prime is 21112330123. The reversal of 21112330113 is 31103321112.

21112330113 is a `hidden beast` number, since 211 + 12 + 330 + 113 = 666.

It is not a de Polignac number, because 21112330113 - 2⁴ = 21112330097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21112330123) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13336120 + ... + 13337702.

It is an arithmetic number, because the mean of its divisors is an integer number (732251520).

Almost surely, 2^21112330113 is an apocalyptic number.

It is an amenable number.

21112330113 is a deficient number, since it is larger than the sum of its proper divisors (14035742847).

21112330113 is a wasteful number, since it uses less digits than its factorization.

21112330113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3258 (or 3255 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 21112330113 its reverse (31103321112), we get a palindrome (52215651225).

Subtracting 21112330113 from its reverse (31103321112), we obtain a palindrome (9990990999).

The spelling of 21112330113 in words is "twenty-one billion, one hundred twelve million, three hundred thirty thousand, one hundred thirteen".