113128422 has 16 divisors (see below), whose sum is σ = 246825792. Its totient is φ = 34281320.

The previous prime is 113128409. The next prime is 113128441. The reversal of 113128422 is 224821311.

It is a junction number, because it is equal to n+sod(n) for n = 113128392 and 113128401.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 856968 + ... + 857099.

It is an arithmetic number, because the mean of its divisors is an integer number (15426612).

Almost surely, 2^113128422 is an apocalyptic number.

113128422 is an abundant number, since it is smaller than the sum of its proper divisors (133697370).

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

113128422 is a wasteful number, since it uses less digits than its factorization.

113128422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1714083.

The product of its digits is 768, while the sum is 24.

The square root of 113128422 is about 10636.1845602641. The cubic root of 113128422 is about 483.6418901224.

Adding to 113128422 its reverse (224821311), we get a palindrome (337949733).

The spelling of 113128422 in words is "one hundred thirteen million, one hundred twenty-eight thousand, four hundred twenty-two".