113243313 has 4 divisors (see below), whose sum is σ = 150991088. Its totient is φ = 75495540.

The previous prime is 113243303. The next prime is 113243323. The reversal of 113243313 is 313342311.

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, and also an emirpimes, since its reverse is a distinct semiprime: 313342311 = 3 ⋅104447437.

It is an interprime number because it is at equal distance from previous prime (113243303) and next prime (113243323).

It is not a de Polignac number, because 113243313 - 2¹⁰ = 113242289 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 113243313.

It is not an unprimeable number, because it can be changed into a prime (113243303) 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, 18873883 + ... + 18873888.

It is an arithmetic number, because the mean of its divisors is an integer number (37747772).

Almost surely, 2^113243313 is an apocalyptic number.

It is an amenable number.

113243313 is a deficient number, since it is larger than the sum of its proper divisors (37747775).

113243313 is an equidigital number, since it uses as much as digits as its factorization.

113243313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37747774.

The product of its digits is 648, while the sum is 21.

The square root of 113243313 is about 10641.5841395912. The cubic root of 113243313 is about 483.8055604580.

Adding to 113243313 its reverse (313342311), we get a palindrome (426585624).

The spelling of 113243313 in words is "one hundred thirteen million, two hundred forty-three thousand, three hundred thirteen".