111897112320 has 432 divisors, whose sum is σ = 461704868352. Its totient is φ = 24464056320.

The previous prime is 111897112289. The next prime is 111897112321. The reversal of 111897112320 is 23211798111.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111897112321) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1824555 + ... + 1884885.

Almost surely, 2^111897112320 is an apocalyptic number.

111897112320 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 111897112320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (230852434176).

111897112320 is an abundant number, since it is smaller than the sum of its proper divisors (349807756032).

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

111897112320 is a wasteful number, since it uses less digits than its factorization.

111897112320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60388 (or 60371 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 36.

The spelling of 111897112320 in words is "one hundred eleven billion, eight hundred ninety-seven million, one hundred twelve thousand, three hundred twenty".