113012321212 has 24 divisors (see below), whose sum is σ = 227411305856. Its totient is φ = 48136709808.

The previous prime is 113012321179. The next prime is 113012321243. The reversal of 113012321212 is 212123210311.

It is a self number, because there is not a number n which added to its sum of digits gives 113012321212.

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, 12376278 + ... + 12385405.

Almost surely, 2^113012321212 is an apocalyptic number.

It is an amenable number.

113012321212 is an abundant number, since it is smaller than the sum of its proper divisors (114398984644).

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

113012321212 is a wasteful number, since it uses less digits than its factorization.

113012321212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24761857 (or 24761855 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 113012321212 its reverse (212123210311), we get a palindrome (325135531523).

The spelling of 113012321212 in words is "one hundred thirteen billion, twelve million, three hundred twenty-one thousand, two hundred twelve".