21112303113 has 12 divisors (see below), whose sum is σ = 33267871728. Its totient is φ = 12795335160.

The previous prime is 21112303103. The next prime is 21112303117. The reversal of 21112303113 is 31130321112.

It is not a de Polignac number, because 21112303113 - 2⁵ = 21112303081 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21112303117) 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, 106627695 + ... + 106627892.

It is an arithmetic number, because the mean of its divisors is an integer number (2772322644).

Almost surely, 2^21112303113 is an apocalyptic number.

It is an amenable number.

21112303113 is a deficient number, since it is larger than the sum of its proper divisors (12155568615).

21112303113 is a wasteful number, since it uses less digits than its factorization.

21112303113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213255604 (or 213255601 counting only the distinct ones).

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

Adding to 21112303113 its reverse (31130321112), we get a palindrome (52242624225).

The spelling of 21112303113 in words is "twenty-one billion, one hundred twelve million, three hundred three thousand, one hundred thirteen".