113240243 has 4 divisors (see below), whose sum is σ = 114835248. Its totient is φ = 111645240.

The previous prime is 113240221. The next prime is 113240261. The reversal of 113240243 is 342042311.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113240243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113240203) 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, 797396 + ... + 797537.

It is an arithmetic number, because the mean of its divisors is an integer number (28708812).

Almost surely, 2^113240243 is an apocalyptic number.

113240243 is a deficient number, since it is larger than the sum of its proper divisors (1595005).

113240243 is an equidigital number, since it uses as much as digits as its factorization.

113240243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1595004.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 113240243 is about 10641.4398931724. The cubic root of 113240243 is about 483.8011884663.

Adding to 113240243 its reverse (342042311), we get a palindrome (455282554).

The spelling of 113240243 in words is "one hundred thirteen million, two hundred forty thousand, two hundred forty-three".