12442242313 has 4 divisors (see below), whose sum is σ = 12442547988. Its totient is φ = 12441936640.

The previous prime is 12442242289. The next prime is 12442242343. The reversal of 12442242313 is 31324224421.

12442242313 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2675268729 + 9766973584 = 51723^2 + 98828^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12442242313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12442242343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80308 + ... + 177013.

It is an arithmetic number, because the mean of its divisors is an integer number (3110636997).

Almost surely, 2^12442242313 is an apocalyptic number.

It is an amenable number.

12442242313 is a deficient number, since it is larger than the sum of its proper divisors (305675).

12442242313 is an equidigital number, since it uses as much as digits as its factorization.

12442242313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305674.

The product of its digits is 9216, while the sum is 28.

Adding to 12442242313 its reverse (31324224421), we get a palindrome (43766466734).

The spelling of 12442242313 in words is "twelve billion, four hundred forty-two million, two hundred forty-two thousand, three hundred thirteen".