111120020120 has 16 divisors (see below), whose sum is σ = 250020045360. Its totient is φ = 44448008032.

The previous prime is 111120020117. The next prime is 111120020131. The reversal of 111120020120 is 21020021111.

111120020120 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 1389000212 + ... + 1389000291.

It is an arithmetic number, because the mean of its divisors is an integer number (15626252835).

Almost surely, 2^111120020120 is an apocalyptic number.

111120020120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111120020120 is an abundant number, since it is smaller than the sum of its proper divisors (138900025240).

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

111120020120 is a wasteful number, since it uses less digits than its factorization.

111120020120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2778000514 (or 2778000510 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 111120020120 its reverse (21020021111), we get a palindrome (132140041231).

Subtracting from 111120020120 its reverse (21020021111), we obtain a palindrome (90099999009).

The spelling of 111120020120 in words is "one hundred eleven billion, one hundred twenty million, twenty thousand, one hundred twenty".