111500112 has 40 divisors (see below), whose sum is σ = 288441856. Its totient is φ = 37115136.

The previous prime is 111500107. The next prime is 111500119. The reversal of 111500112 is 211005111.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111500119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51108 + ... + 53244.

Almost surely, 2^111500112 is an apocalyptic number.

111500112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111500112 is an abundant number, since it is smaller than the sum of its proper divisors (176941744).

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

111500112 is a wasteful number, since it uses less digits than its factorization.

111500112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3235 (or 3229 counting only the distinct ones).

The product of its (nonzero) digits is 10, while the sum is 12.

The square root of 111500112 is about 10559.3613443238. The cubic root of 111500112 is about 481.3102396735.

Adding to 111500112 its reverse (211005111), we get a palindrome (322505223).

The spelling of 111500112 in words is "one hundred eleven million, five hundred thousand, one hundred twelve".