111383838720 has 1280 divisors, whose sum is σ = 502428009600. Its totient is φ = 22932357120.

The previous prime is 111383838701. The next prime is 111383838737. The reversal of 111383838720 is 27838383111.

111383838720 is a `hidden beast` number, since 111 + 383 + 83 + 87 + 2 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1280).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1021870026 + ... + 1021870134.

Almost surely, 2^111383838720 is an apocalyptic number.

111383838720 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 111383838720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (251214004800).

111383838720 is an abundant number, since it is smaller than the sum of its proper divisors (391044170880).

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

111383838720 is an equidigital number, since it uses as much as digits as its factorization.

111383838720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174 (or 137 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The spelling of 111383838720 in words is "one hundred eleven billion, three hundred eighty-three million, eight hundred thirty-eight thousand, seven hundred twenty".