111520000000 has 384 divisors, whose sum is σ = 302325397920. Its totient is φ = 40960000000.

The previous prime is 111519999967. The next prime is 111520000013. The reversal of 111520000000 is 25111.

It is a happy number.

It can be written as a sum of positive squares in 16 ways, for example, as 105308038144 + 6211961856 = 324512^2 + 78816^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

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, 2719999980 + ... + 2720000020.

Almost surely, 2^111520000000 is an apocalyptic number.

111520000000 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 111520000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (151162698960).

111520000000 is an abundant number, since it is smaller than the sum of its proper divisors (190805397920).

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

111520000000 is an frugal number, since it uses more digits than its factorization.

111520000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115 (or 65 counting only the distinct ones).

The product of its (nonzero) digits is 10, while the sum is 10.

Adding to 111520000000 its reverse (25111), we get a palindrome (111520025111).

The spelling of 111520000000 in words is "one hundred eleven billion, five hundred twenty million", and thus it is an aban number.