111112432 has 40 divisors (see below), whose sum is σ = 224985600. Its totient is φ = 53096640.

The previous prime is 111112411. The next prime is 111112447. The reversal of 111112432 is 234211111.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39819 + ... + 42517.

It is an arithmetic number, because the mean of its divisors is an integer number (5624640).

Almost surely, 2^111112432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111112432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112492800).

111112432 is an abundant number, since it is smaller than the sum of its proper divisors (113873168).

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

111112432 is a wasteful number, since it uses less digits than its factorization.

111112432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2821 (or 2815 counting only the distinct ones).

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

The square root of 111112432 is about 10540.9881889698. The cubic root of 111112432 is about 480.7517618130.

Adding to 111112432 its reverse (234211111), we get a palindrome (345323543).

The spelling of 111112432 in words is "one hundred eleven million, one hundred twelve thousand, four hundred thirty-two".