111117901824 has 168 divisors, whose sum is σ = 321615328320. Its totient is φ = 36966924288.

The previous prime is 111117901787. The next prime is 111117901831. The reversal of 111117901824 is 428109711111.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 48585609 + ... + 48587895.

Almost surely, 2^111117901824 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111117901824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160807664160).

111117901824 is an abundant number, since it is smaller than the sum of its proper divisors (210497426496).

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

111117901824 is an equidigital number, since it uses as much as digits as its factorization.

111117901824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2978 (or 2951 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 36.

The spelling of 111117901824 in words is "one hundred eleven billion, one hundred seventeen million, nine hundred one thousand, eight hundred twenty-four".