113212112013 has 48 divisors (see below), whose sum is σ = 219562901376. Its totient is φ = 54287521920.

The previous prime is 113212111993. The next prime is 113212112029. The reversal of 113212112013 is 310211212311.

It is not a de Polignac number, because 113212112013 - 2⁹ = 113212111501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113212112513) 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, 6274270 + ... + 6292287.

It is an arithmetic number, because the mean of its divisors is an integer number (4574227112).

Almost surely, 2^113212112013 is an apocalyptic number.

113212112013 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

113212112013 is a deficient number, since it is larger than the sum of its proper divisors (106350789363).

113212112013 is a wasteful number, since it uses less digits than its factorization.

113212112013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12566594 (or 12566591 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 113212112013 its reverse (310211212311), we get a palindrome (423423324324).

The spelling of 113212112013 in words is "one hundred thirteen billion, two hundred twelve million, one hundred twelve thousand, thirteen".