111838680 has 48 divisors (see below), whose sum is σ = 363476880. Its totient is φ = 29823552.

The previous prime is 111838637. The next prime is 111838711. The reversal of 111838680 is 86838111.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 154972 + ... + 155691.

It is an arithmetic number, because the mean of its divisors is an integer number (7572435).

Almost surely, 2^111838680 is an apocalyptic number.

111838680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111838680 is an abundant number, since it is smaller than the sum of its proper divisors (251638200).

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

111838680 is a wasteful number, since it uses less digits than its factorization.

111838680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310680 (or 310673 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 36.

The square root of 111838680 is about 10575.3808442060. The cubic root of 111838680 is about 481.7969105899.

The spelling of 111838680 in words is "one hundred eleven million, eight hundred thirty-eight thousand, six hundred eighty".