111031131120 has 320 divisors, whose sum is σ = 425096792064. Its totient is φ = 23345049600.

The previous prime is 111031131103. The next prime is 111031131131. The reversal of 111031131120 is 21131130111.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 111031131120.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6390445 + ... + 6407795.

Almost surely, 2^111031131120 is an apocalyptic number.

111031131120 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 111031131120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (212548396032).

111031131120 is an abundant number, since it is smaller than the sum of its proper divisors (314065660944).

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

111031131120 is a wasteful number, since it uses less digits than its factorization.

111031131120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17680 (or 17674 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 15.

Adding to 111031131120 its reverse (21131130111), we get a palindrome (132162261231).

The spelling of 111031131120 in words is "one hundred eleven billion, thirty-one million, one hundred thirty-one thousand, one hundred twenty".