112112520 has 64 divisors (see below), whose sum is σ = 362214720. Its totient is φ = 27596544.

The previous prime is 112112519. The next prime is 112112549. The reversal of 112112520 is 25211211.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 112112520.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34374 + ... + 37493.

It is an arithmetic number, because the mean of its divisors is an integer number (5659605).

Almost surely, 2^112112520 is an apocalyptic number.

112112520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

112112520 is an abundant number, since it is smaller than the sum of its proper divisors (250102200).

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

112112520 is a wasteful number, since it uses less digits than its factorization.

112112520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71894 (or 71890 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 15.

The square root of 112112520 is about 10588.3199800535. The cubic root of 112112520 is about 482.1898209554.

Adding to 112112520 its reverse (25211211), we get a palindrome (137323731).

It can be divided in two parts, 11211 and 2520, that added together give a palindrome (13731).

The spelling of 112112520 in words is "one hundred twelve million, one hundred twelve thousand, five hundred twenty".