111112120240 has 160 divisors (see below), whose sum is σ = 286220252160. Its totient is φ = 39775411200.

The previous prime is 111112120211. The next prime is 111112120253. The reversal of 111112120240 is 42021211111.

It is a Harshad number since it is a multiple of its sum of digits (16).

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, 76787197 + ... + 76788643.

It is an arithmetic number, because the mean of its divisors is an integer number (1788876576).

Almost surely, 2^111112120240 is an apocalyptic number.

111112120240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111112120240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143110126080).

111112120240 is an abundant number, since it is smaller than the sum of its proper divisors (175108131920).

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

111112120240 is a wasteful number, since it uses less digits than its factorization.

111112120240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2771 (or 2765 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 111112120240 its reverse (42021211111), we get a palindrome (153133331351).

The spelling of 111112120240 in words is "one hundred eleven billion, one hundred twelve million, one hundred twenty thousand, two hundred forty".