1113242313 has 4 divisors (see below), whose sum is σ = 1484323088. Its totient is φ = 742161540.

The previous prime is 1113242309. The next prime is 1113242321. The reversal of 1113242313 is 3132423111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1113242313 - 2² = 1113242309 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1113242313.

It is not an unprimeable number, because it can be changed into a prime (1113242353) 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, 185540383 + ... + 185540388.

It is an arithmetic number, because the mean of its divisors is an integer number (371080772).

Almost surely, 2^1113242313 is an apocalyptic number.

It is an amenable number.

1113242313 is a deficient number, since it is larger than the sum of its proper divisors (371080775).

1113242313 is an equidigital number, since it uses as much as digits as its factorization.

1113242313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371080774.

The product of its digits is 432, while the sum is 21.

The square root of 1113242313 is about 33365.2860470280. The cubic root of 1113242313 is about 1036.4059596870.

Adding to 1113242313 its reverse (3132423111), we get a palindrome (4245665424).

The spelling of 1113242313 in words is "one billion, one hundred thirteen million, two hundred forty-two thousand, three hundred thirteen".