111109380000 has 240 divisors, whose sum is σ = 368573768640. Its totient is φ = 29294848000.

The previous prime is 111109379987. The next prime is 111109380023. The reversal of 111109380000 is 83901111.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 5329597 + ... + 5350403.

It is an arithmetic number, because the mean of its divisors is an integer number (1535724036).

Almost surely, 2^111109380000 is an apocalyptic number.

111109380000 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 111109380000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (184286884320).

111109380000 is an abundant number, since it is smaller than the sum of its proper divisors (257464388640).

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

111109380000 is an equidigital number, since it uses as much as digits as its factorization.

111109380000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20929 (or 20906 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 24.

The spelling of 111109380000 in words is "one hundred eleven billion, one hundred nine million, three hundred eighty thousand".