111403612 has 12 divisors (see below), whose sum is σ = 205217320. Its totient is φ = 52770096.

The previous prime is 111403609. The next prime is 111403613. The reversal of 111403612 is 216304111.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 111403612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111403613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 732843 + ... + 732994.

Almost surely, 2^111403612 is an apocalyptic number.

It is an amenable number.

111403612 is a deficient number, since it is larger than the sum of its proper divisors (93813708).

111403612 is a wasteful number, since it uses less digits than its factorization.

111403612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1465860 (or 1465858 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 111403612 is about 10554.7909500852. The cubic root of 111403612 is about 481.1713464083.

Adding to 111403612 its reverse (216304111), we get a palindrome (327707723).

The spelling of 111403612 in words is "one hundred eleven million, four hundred three thousand, six hundred twelve".