111311030120 has 32 divisors (see below), whose sum is σ = 252361660320. Its totient is φ = 44184528960.

The previous prime is 111311030071. The next prime is 111311030141. The reversal of 111311030120 is 21030113111.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 111311030095 and 111311030104.

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, 10616042 + ... + 10626521.

It is an arithmetic number, because the mean of its divisors is an integer number (7886301885).

Almost surely, 2^111311030120 is an apocalyptic number.

111311030120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111311030120 is an abundant number, since it is smaller than the sum of its proper divisors (141050630200).

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

111311030120 is a wasteful number, since it uses less digits than its factorization.

111311030120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21242705 (or 21242701 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 14.

Adding to 111311030120 its reverse (21030113111), we get a palindrome (132341143231).

The spelling of 111311030120 in words is "one hundred eleven billion, three hundred eleven million, thirty thousand, one hundred twenty".