12431736563 has 2 divisors, whose sum is σ = 12431736564. Its totient is φ = 12431736562.

The previous prime is 12431736517. The next prime is 12431736571. The reversal of 12431736563 is 36563713421.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12431736563 - 2²⁸ = 12163301107 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12431736563.

It is not a weakly prime, because it can be changed into another prime (12431736593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6215868281 + 6215868282.

It is an arithmetic number, because the mean of its divisors is an integer number (6215868282).

Almost surely, 2^12431736563 is an apocalyptic number.

12431736563 is a deficient number, since it is larger than the sum of its proper divisors (1).

12431736563 is an equidigital number, since it uses as much as digits as its factorization.

12431736563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 272160, while the sum is 41.

The spelling of 12431736563 in words is "twelve billion, four hundred thirty-one million, seven hundred thirty-six thousand, five hundred sixty-three".