113112005 has 4 divisors (see below), whose sum is σ = 135734412. Its totient is φ = 90489600.

The previous prime is 113111993. The next prime is 113112011. The reversal of 113112005 is 500211311.

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

It can be written as a sum of positive squares in 2 ways, for example, as 25090081 + 88021924 = 5009^2 + 9382^2 .

It is not a de Polignac number, because 113112005 - 2⁶ = 113111941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11311196 + ... + 11311205.

It is an arithmetic number, because the mean of its divisors is an integer number (33933603).

Almost surely, 2^113112005 is an apocalyptic number.

It is an amenable number.

113112005 is a deficient number, since it is larger than the sum of its proper divisors (22622407).

113112005 is an equidigital number, since it uses as much as digits as its factorization.

113112005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22622406.

The product of its (nonzero) digits is 30, while the sum is 14.

The square root of 113112005 is about 10635.4127799536. The cubic root of 113112005 is about 483.6184939004.

Adding to 113112005 its reverse (500211311), we get a palindrome (613323316).

The spelling of 113112005 in words is "one hundred thirteen million, one hundred twelve thousand, five".