12347517353 has 2 divisors, whose sum is σ = 12347517354. Its totient is φ = 12347517352.

The previous prime is 12347517349. The next prime is 12347517373. The reversal of 12347517353 is 35371574321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10777138969 + 1570378384 = 103813^2 + 39628^2 .

It is an emirp because it is prime and its reverse (35371574321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12347517353 - 2² = 12347517349 is a prime.

It is a super-2 number, since 2×12347517353² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12347517353.

It is not a weakly prime, because it can be changed into another prime (12347517313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6173758676 + 6173758677.

It is an arithmetic number, because the mean of its divisors is an integer number (6173758677).

Almost surely, 2^12347517353 is an apocalyptic number.

It is an amenable number.

12347517353 is a deficient number, since it is larger than the sum of its proper divisors (1).

12347517353 is an equidigital number, since it uses as much as digits as its factorization.

12347517353 is an evil number, because the sum of its binary digits is even.

The product of its digits is 264600, while the sum is 41.

The spelling of 12347517353 in words is "twelve billion, three hundred forty-seven million, five hundred seventeen thousand, three hundred fifty-three".