111920930 has 64 divisors (see below), whose sum is σ = 228707712. Its totient is φ = 39075840.

The previous prime is 111920867. The next prime is 111920951. The reversal of 111920930 is 39029111.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 111920930.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 435362 + ... + 435618.

It is an arithmetic number, because the mean of its divisors is an integer number (3573558).

Almost surely, 2^111920930 is an apocalyptic number.

111920930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111920930 is an abundant number, since it is smaller than the sum of its proper divisors (116786782).

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

111920930 is a wasteful number, since it uses less digits than its factorization.

111920930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419.

The product of its (nonzero) digits is 486, while the sum is 26.

The square root of 111920930 is about 10579.2688783299. The cubic root of 111920930 is about 481.9149916370.

The spelling of 111920930 in words is "one hundred eleven million, nine hundred twenty thousand, nine hundred thirty".