111520332252 has 240 divisors, whose sum is σ = 338492110880. Its totient is φ = 31749967872.

The previous prime is 111520332251. The next prime is 111520332283. The reversal of 111520332252 is 252233025111.

111520332252 is a `hidden beast` number, since 111 + 520 + 3 + 3 + 2 + 25 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111520332251) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 96721308 + ... + 96722460.

Almost surely, 2^111520332252 is an apocalyptic number.

111520332252 is a gapful number since it is divisible by the number (12) 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 111520332252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (169246055440).

111520332252 is an abundant number, since it is smaller than the sum of its proper divisors (226971778628).

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

111520332252 is a wasteful number, since it uses less digits than its factorization.

111520332252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1567 (or 1538 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

Adding to 111520332252 its reverse (252233025111), we get a palindrome (363753357363).

The spelling of 111520332252 in words is "one hundred eleven billion, five hundred twenty million, three hundred thirty-two thousand, two hundred fifty-two".