112120110128 has 80 divisors (see below), whose sum is σ = 240816524256. Its totient is φ = 50247475200.

The previous prime is 112120110127. The next prime is 112120110133. The reversal of 112120110128 is 821011021211.

It is a happy number.

It is a super-2 number, since 2×112120110128² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (112120110127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1016903 + ... + 1121753.

Almost surely, 2^112120110128 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 112120110128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120408262128).

112120110128 is an abundant number, since it is smaller than the sum of its proper divisors (128696414128).

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

112120110128 is a wasteful number, since it uses less digits than its factorization.

112120110128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105022 (or 105016 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 20.

Adding to 112120110128 its reverse (821011021211), we get a palindrome (933131131339).

The spelling of 112120110128 in words is "one hundred twelve billion, one hundred twenty million, one hundred ten thousand, one hundred twenty-eight".