111120031200 has 144 divisors (see below), whose sum is σ = 362523047040. Its totient is φ = 29564229120.

The previous prime is 111120031199. The next prime is 111120031213. The reversal of 111120031200 is 2130021111.

It is a super-2 number, since 2×111120031200² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1000867 + ... + 1106333.

It is an arithmetic number, because the mean of its divisors is an integer number (2517521160).

Almost surely, 2^111120031200 is an apocalyptic number.

111120031200 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 111120031200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (181261523520).

111120031200 is an abundant number, since it is smaller than the sum of its proper divisors (251403015840).

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

111120031200 is a wasteful number, since it uses less digits than its factorization.

111120031200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105929 (or 105916 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 111120031200 its reverse (2130021111), we get a palindrome (113250052311).

The spelling of 111120031200 in words is "one hundred eleven billion, one hundred twenty million, thirty-one thousand, two hundred".