113431020312 has 16 divisors (see below), whose sum is σ = 283577550840. Its totient is φ = 37810340096.

The previous prime is 113431020233. The next prime is 113431020341. The reversal of 113431020312 is 213020134311.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2363146233 + ... + 2363146280.

Almost surely, 2^113431020312 is an apocalyptic number.

113431020312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

113431020312 is an abundant number, since it is smaller than the sum of its proper divisors (170146530528).

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

113431020312 is a wasteful number, since it uses less digits than its factorization.

113431020312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4726292522 (or 4726292518 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 113431020312 its reverse (213020134311), we get a palindrome (326451154623).

The spelling of 113431020312 in words is "one hundred thirteen billion, four hundred thirty-one million, twenty thousand, three hundred twelve".