12147345713 has 2 divisors, whose sum is σ = 12147345714. Its totient is φ = 12147345712.

The previous prime is 12147345671. The next prime is 12147345719. The reversal of 12147345713 is 31754374121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11939495824 + 207849889 = 109268^2 + 14417^2 .

It is a cyclic number.

It is not a de Polignac number, because 12147345713 - 2²⁴ = 12130568497 is a prime.

It is a super-2 number, since 2×12147345713² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (12147345719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6073672856 + 6073672857.

It is an arithmetic number, because the mean of its divisors is an integer number (6073672857).

Almost surely, 2^12147345713 is an apocalyptic number.

It is an amenable number.

12147345713 is a deficient number, since it is larger than the sum of its proper divisors (1).

12147345713 is an equidigital number, since it uses as much as digits as its factorization.

12147345713 is an evil number, because the sum of its binary digits is even.

The product of its digits is 70560, while the sum is 38.

The spelling of 12147345713 in words is "twelve billion, one hundred forty-seven million, three hundred forty-five thousand, seven hundred thirteen".