111315980 has 24 divisors (see below), whose sum is σ = 240083088. Its totient is φ = 43322688.

The previous prime is 111315979. The next prime is 111315991. The reversal of 111315980 is 89513111.

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, 74474 + ... + 75953.

It is an arithmetic number, because the mean of its divisors is an integer number (10003462).

Almost surely, 2^111315980 is an apocalyptic number.

111315980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111315980 is an abundant number, since it is smaller than the sum of its proper divisors (128767108).

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

111315980 is a wasteful number, since it uses less digits than its factorization.

111315980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150473 (or 150471 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 29.

The square root of 111315980 is about 10550.6388432170. The cubic root of 111315980 is about 481.0451474228.

The spelling of 111315980 in words is "one hundred eleven million, three hundred fifteen thousand, nine hundred eighty".