12344421313 has 4 divisors (see below), whose sum is σ = 14107910080. Its totient is φ = 10580932548.

The previous prime is 12344421311. The next prime is 12344421377. The reversal of 12344421313 is 31312444321.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 12344421313 - 2¹ = 12344421311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12344421311) 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, 881744373 + ... + 881744386.

It is an arithmetic number, because the mean of its divisors is an integer number (3526977520).

Almost surely, 2^12344421313 is an apocalyptic number.

It is an amenable number.

12344421313 is a deficient number, since it is larger than the sum of its proper divisors (1763488767).

12344421313 is an equidigital number, since it uses as much as digits as its factorization.

12344421313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1763488766.

The product of its digits is 6912, while the sum is 28.

Adding to 12344421313 its reverse (31312444321), we get a palindrome (43656865634).

The spelling of 12344421313 in words is "twelve billion, three hundred forty-four million, four hundred twenty-one thousand, three hundred thirteen".