111112540120 has 32 divisors (see below), whose sum is σ = 250031358720. Its totient is φ = 44440012800.

The previous prime is 111112540117. The next prime is 111112540181. The reversal of 111112540120 is 21045211111.

It is a super-2 number, since 2×111112540120² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 214264 + ... + 517816.

It is an arithmetic number, because the mean of its divisors is an integer number (7813479960).

Almost surely, 2^111112540120 is an apocalyptic number.

111112540120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111112540120 is an abundant number, since it is smaller than the sum of its proper divisors (138918818600).

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

111112540120 is a wasteful number, since it uses less digits than its factorization.

111112540120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312715 (or 312711 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 19.

Adding to 111112540120 its reverse (21045211111), we get a palindrome (132157751231).

The spelling of 111112540120 in words is "one hundred eleven billion, one hundred twelve million, five hundred forty thousand, one hundred twenty".