113020212112 has 20 divisors (see below), whose sum is σ = 218996435340. Its totient is φ = 56505003008.

The previous prime is 113020212091. The next prime is 113020212127. The reversal of 113020212112 is 211212020311.

It can be written as a sum of positive squares in 2 ways, for example, as 61007024016 + 52013188096 = 246996^2 + 228064^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

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, 132937 + ... + 493672.

It is an arithmetic number, because the mean of its divisors is an integer number (10949821767).

Almost surely, 2^113020212112 is an apocalyptic number.

It is an amenable number.

113020212112 is a deficient number, since it is larger than the sum of its proper divisors (105976223228).

113020212112 is a wasteful number, since it uses less digits than its factorization.

113020212112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637890 (or 637884 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 113020212112 its reverse (211212020311), we get a palindrome (324232232423).

The spelling of 113020212112 in words is "one hundred thirteen billion, twenty million, two hundred twelve thousand, one hundred twelve".