12339244517 has 4 divisors (see below), whose sum is σ = 12541527276. Its totient is φ = 12136961760.

The previous prime is 12339244513. The next prime is 12339244529. The reversal of 12339244517 is 71544293321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 71544293321 = 313 ⋅228576017.

It can be written as a sum of positive squares in 2 ways, for example, as 341547361 + 11997697156 = 18481^2 + 109534^2 .

It is a cyclic number.

It is not a de Polignac number, because 12339244517 - 2² = 12339244513 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12339244513) 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, 101141288 + ... + 101141409.

It is an arithmetic number, because the mean of its divisors is an integer number (3135381819).

Almost surely, 2^12339244517 is an apocalyptic number.

It is an amenable number.

12339244517 is a deficient number, since it is larger than the sum of its proper divisors (202282759).

12339244517 is an equidigital number, since it uses as much as digits as its factorization.

12339244517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202282758.

The product of its digits is 181440, while the sum is 41.

The spelling of 12339244517 in words is "twelve billion, three hundred thirty-nine million, two hundred forty-four thousand, five hundred seventeen".