113105243 has 4 divisors (see below), whose sum is σ = 113290368. Its totient is φ = 112920120.

The previous prime is 113105231. The next prime is 113105261. The reversal of 113105243 is 342501311.

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

It is a cyclic number.

It is not a de Polignac number, because 113105243 - 2⁸ = 113104987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113155243) 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, 91643 + ... + 92868.

It is an arithmetic number, because the mean of its divisors is an integer number (28322592).

Almost surely, 2^113105243 is an apocalyptic number.

113105243 is a deficient number, since it is larger than the sum of its proper divisors (185125).

113105243 is an equidigital number, since it uses as much as digits as its factorization.

113105243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185124.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 113105243 is about 10635.0948749882. The cubic root of 113105243 is about 483.6088565697.

Adding to 113105243 its reverse (342501311), we get a palindrome (455606554).

The spelling of 113105243 in words is "one hundred thirteen million, one hundred five thousand, two hundred forty-three".