113581171227 has 4 divisors (see below), whose sum is σ = 151441561640. Its totient is φ = 75720780816.

The previous prime is 113581171213. The next prime is 113581171243. The reversal of 113581171227 is 722171185311.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 113581171227 - 2¹² = 113581167131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113581171267) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18930195202 + ... + 18930195207.

It is an arithmetic number, because the mean of its divisors is an integer number (37860390410).

Almost surely, 2^113581171227 is an apocalyptic number.

113581171227 is a deficient number, since it is larger than the sum of its proper divisors (37860390413).

113581171227 is an equidigital number, since it uses as much as digits as its factorization.

113581171227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37860390412.

The product of its digits is 23520, while the sum is 39.

The spelling of 113581171227 in words is "one hundred thirteen billion, five hundred eighty-one million, one hundred seventy-one thousand, two hundred twenty-seven".