113202128 has 40 divisors (see below), whose sum is σ = 239755488. Its totient is φ = 51460992.

The previous prime is 113202127. The next prime is 113202137. The reversal of 113202128 is 821202311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113202127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9875 + ... + 17997.

Almost surely, 2^113202128 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 113202128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119877744).

113202128 is an abundant number, since it is smaller than the sum of its proper divisors (126553360).

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

113202128 is a wasteful number, since it uses less digits than its factorization.

113202128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8211 (or 8205 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 113202128 is about 10639.6488663865. The cubic root of 113202128 is about 483.7469022541.

Adding to 113202128 its reverse (821202311), we get a palindrome (934404439).

The spelling of 113202128 in words is "one hundred thirteen million, two hundred two thousand, one hundred twenty-eight".