12309071563 has 2 divisors, whose sum is σ = 12309071564. Its totient is φ = 12309071562.

The previous prime is 12309071557. The next prime is 12309071617. The reversal of 12309071563 is 36517090321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12309071563 - 2²⁹ = 11772200651 is a prime.

It is not a weakly prime, because it can be changed into another prime (12309071363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6154535781 + 6154535782.

It is an arithmetic number, because the mean of its divisors is an integer number (6154535782).

Almost surely, 2^12309071563 is an apocalyptic number.

12309071563 is a deficient number, since it is larger than the sum of its proper divisors (1).

12309071563 is an equidigital number, since it uses as much as digits as its factorization.

12309071563 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34020, while the sum is 37.

The spelling of 12309071563 in words is "twelve billion, three hundred nine million, seventy-one thousand, five hundred sixty-three".