113110128 has 80 divisors (see below), whose sum is σ = 327836160. Its totient is φ = 37335744.

The previous prime is 113110093. The next prime is 113110157. The reversal of 113110128 is 821011311.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a self number, because there is not a number n which added to its sum of digits gives 113110128.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45001 + ... + 47447.

It is an arithmetic number, because the mean of its divisors is an integer number (4097952).

Almost surely, 2^113110128 is an apocalyptic number.

113110128 is a gapful number since it is divisible by the number (18) 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 113110128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (163918080).

113110128 is an abundant number, since it is smaller than the sum of its proper divisors (214726032).

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

113110128 is a wasteful number, since it uses less digits than its factorization.

113110128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2571 (or 2559 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

The square root of 113110128 is about 10635.3245366561. The cubic root of 113110128 is about 483.6158188029.

Adding to 113110128 its reverse (821011311), we get a palindrome (934121439).

The spelling of 113110128 in words is "one hundred thirteen million, one hundred ten thousand, one hundred twenty-eight".