113581171228 has 48 divisors (see below), whose sum is σ = 228910933440. Its totient is φ = 48303230976.

The previous prime is 113581171213. The next prime is 113581171243. The reversal of 113581171228 is 822171185311.

It is an interprime number because it is at equal distance from previous prime (113581171213) and next prime (113581171243).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14177688 + ... + 14185696.

It is an arithmetic number, because the mean of its divisors is an integer number (4768977780).

Almost surely, 2^113581171228 is an apocalyptic number.

It is an amenable number.

113581171228 is an abundant number, since it is smaller than the sum of its proper divisors (115329762212).

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

113581171228 is a wasteful number, since it uses less digits than its factorization.

113581171228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11854 (or 11852 counting only the distinct ones).

The product of its digits is 26880, while the sum is 40.

The spelling of 113581171228 in words is "one hundred thirteen billion, five hundred eighty-one million, one hundred seventy-one thousand, two hundred twenty-eight".