111123133120 has 224 divisors, whose sum is σ = 275274853056. Its totient is φ = 42698342400.

The previous prime is 111123133109. The next prime is 111123133193. The reversal of 111123133120 is 21331321111.

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, 379259694 + ... + 379259986.

It is an arithmetic number, because the mean of its divisors is an integer number (1228905594).

Almost surely, 2^111123133120 is an apocalyptic number.

111123133120 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 111123133120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (137637426528).

111123133120 is an abundant number, since it is smaller than the sum of its proper divisors (164151719936).

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

111123133120 is a wasteful number, since it uses less digits than its factorization.

111123133120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 699 (or 689 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 111123133120 its reverse (21331321111), we get a palindrome (132454454231).

The spelling of 111123133120 in words is "one hundred eleven billion, one hundred twenty-three million, one hundred thirty-three thousand, one hundred twenty".