111601120 has 24 divisors (see below), whose sum is σ = 263658024. Its totient is φ = 44640384.

The previous prime is 111601103. The next prime is 111601183. The reversal of 111601120 is 21106111.

It is a self number, because there is not a number n which added to its sum of digits gives 111601120.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 348594 + ... + 348913.

It is an arithmetic number, because the mean of its divisors is an integer number (10985751).

Almost surely, 2^111601120 is an apocalyptic number.

111601120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111601120 is an abundant number, since it is smaller than the sum of its proper divisors (152056904).

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

111601120 is an equidigital number, since it uses as much as digits as its factorization.

111601120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 697522 (or 697514 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 13.

The square root of 111601120 is about 10564.1431266336. The cubic root of 111601120 is about 481.4555355264.

Adding to 111601120 its reverse (21106111), we get a palindrome (132707231).

The spelling of 111601120 in words is "one hundred eleven million, six hundred one thousand, one hundred twenty".