111313131120 has 160 divisors (see below), whose sum is σ = 383770824000. Its totient is φ = 29655714816.

The previous prime is 111313131113. The next prime is 111313131151. The reversal of 111313131120 is 21131313111.

It is a super-2 number, since 2×111313131120² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 111313131093 and 111313131102.

It is a congruent number.

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, 2337306 + ... + 2384454.

It is an arithmetic number, because the mean of its divisors is an integer number (2398567650).

Almost surely, 2^111313131120 is an apocalyptic number.

111313131120 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 111313131120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (191885412000).

111313131120 is an abundant number, since it is smaller than the sum of its proper divisors (272457692880).

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

111313131120 is a wasteful number, since it uses less digits than its factorization.

111313131120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48264 (or 48252 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 18.

Adding to 111313131120 its reverse (21131313111), we get a palindrome (132444444231).

The spelling of 111313131120 in words is "one hundred eleven billion, three hundred thirteen million, one hundred thirty-one thousand, one hundred twenty".