113227128 has 96 divisors (see below), whose sum is σ = 361820160. Its totient is φ = 31302720.

The previous prime is 113227111. The next prime is 113227139. The reversal of 113227128 is 821722311.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12001 + ... + 19247.

It is an arithmetic number, because the mean of its divisors is an integer number (3768960).

Almost surely, 2^113227128 is an apocalyptic number.

113227128 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 113227128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (180910080).

113227128 is an abundant number, since it is smaller than the sum of its proper divisors (248593032).

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

113227128 is a wasteful number, since it uses less digits than its factorization.

113227128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7297 (or 7290 counting only the distinct ones).

The product of its digits is 1344, while the sum is 27.

The square root of 113227128 is about 10640.8236523307. The cubic root of 113227128 is about 483.7825104846.

Adding to 113227128 its reverse (821722311), we get a palindrome (934949439).

The spelling of 113227128 in words is "one hundred thirteen million, two hundred twenty-seven thousand, one hundred twenty-eight".