112309021 has 16 divisors (see below), whose sum is σ = 130775040. Its totient is φ = 95316480.

The previous prime is 112309013. The next prime is 112309031. The reversal of 112309021 is 120903211.

It is a cyclic number.

It is not a de Polignac number, because 112309021 - 2³ = 112309013 is a prime.

It is a super-2 number, since 2×112309021² = 25226632395956882, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 112309021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112309031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21385 + ... + 26113.

It is an arithmetic number, because the mean of its divisors is an integer number (8173440).

Almost surely, 2^112309021 is an apocalyptic number.

112309021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

112309021 is a deficient number, since it is larger than the sum of its proper divisors (18466019).

112309021 is a wasteful number, since it uses less digits than its factorization.

112309021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4884.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 112309021 is about 10597.5950573703. The cubic root of 112309021 is about 482.4713698817.

It can be divided in two parts, 11 and 2309021, that added together give a palindrome (2309032).

The spelling of 112309021 in words is "one hundred twelve million, three hundred nine thousand, twenty-one".