111320980 has 24 divisors (see below), whose sum is σ = 239212512. Its totient is φ = 43492512.

The previous prime is 111320977. The next prime is 111320987. The reversal of 111320980 is 89023111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111320987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63862 + ... + 65581.

It is an arithmetic number, because the mean of its divisors is an integer number (9967188).

Almost surely, 2^111320980 is an apocalyptic number.

111320980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111320980 is an abundant number, since it is smaller than the sum of its proper divisors (127891532).

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

111320980 is a wasteful number, since it uses less digits than its factorization.

111320980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129495 (or 129493 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 25.

The square root of 111320980 is about 10550.8757930325. The cubic root of 111320980 is about 481.0523497122.

The spelling of 111320980 in words is "one hundred eleven million, three hundred twenty thousand, nine hundred eighty".