111878112 has 24 divisors (see below), whose sum is σ = 293680296. Its totient is φ = 37292672.

The previous prime is 111878093. The next prime is 111878113. The reversal of 111878112 is 211878111.

It is a tau number, because it is divible by the number of its divisors (24).

It is a self number, because there is not a number n which added to its sum of digits gives 111878112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111878113) 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, 582603 + ... + 582794.

It is an arithmetic number, because the mean of its divisors is an integer number (12236679).

Almost surely, 2^111878112 is an apocalyptic number.

111878112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111878112 is an abundant number, since it is smaller than the sum of its proper divisors (181802184).

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

111878112 is a wasteful number, since it uses less digits than its factorization.

111878112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1165410 (or 1165402 counting only the distinct ones).

The product of its digits is 896, while the sum is 30.

The square root of 111878112 is about 10577.2450099258. The cubic root of 111878112 is about 481.8535278039.

Subtracting 111878112 from its reverse (211878111), we obtain a palindrome (99999999).

The spelling of 111878112 in words is "one hundred eleven million, eight hundred seventy-eight thousand, one hundred twelve".