111539883312 has 960 divisors, whose sum is σ = 404326121472. Its totient is φ = 28207872000.

The previous prime is 111539883293. The next prime is 111539883349. The reversal of 111539883312 is 213388935111.

111539883312 is a `hidden beast` number, since 1 + 1 + 1 + 539 + 8 + 83 + 31 + 2 = 666.

It is a super-2 number, since 2×111539883312² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

Its product of digits (155520) is a multiple of the sum of its prime factors (270).

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 1042428763 + ... + 1042428869.

Almost surely, 2^111539883312 is an apocalyptic number.

111539883312 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 111539883312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (202163060736).

111539883312 is an abundant number, since it is smaller than the sum of its proper divisors (292786238160).

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

111539883312 is a wasteful number, since it uses less digits than its factorization.

111539883312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270 (or 261 counting only the distinct ones).

The product of its digits is 155520, while the sum is 45.

The spelling of 111539883312 in words is "one hundred eleven billion, five hundred thirty-nine million, eight hundred eighty-three thousand, three hundred twelve".