113131330212 has 12 divisors (see below), whose sum is σ = 263973103856. Its totient is φ = 37710443400.

The previous prime is 113131330211. The next prime is 113131330297. The reversal of 113131330212 is 212033131311.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (113131330211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4713805414 + ... + 4713805437.

Almost surely, 2^113131330212 is an apocalyptic number.

113131330212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

113131330212 is an abundant number, since it is smaller than the sum of its proper divisors (150841773644).

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

113131330212 is a wasteful number, since it uses less digits than its factorization.

113131330212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9427610858 (or 9427610856 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 113131330212 its reverse (212033131311), we get a palindrome (325164461523).

The spelling of 113131330212 in words is "one hundred thirteen billion, one hundred thirty-one million, three hundred thirty thousand, two hundred twelve".