12643050071 has 2 divisors, whose sum is σ = 12643050072. Its totient is φ = 12643050070.

The previous prime is 12643050037. The next prime is 12643050083. The reversal of 12643050071 is 17005034621.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12643050071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12643050001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6321525035 + 6321525036.

It is an arithmetic number, because the mean of its divisors is an integer number (6321525036).

Almost surely, 2^12643050071 is an apocalyptic number.

12643050071 is a deficient number, since it is larger than the sum of its proper divisors (1).

12643050071 is an equidigital number, since it uses as much as digits as its factorization.

12643050071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 29.

Adding to 12643050071 its reverse (17005034621), we get a palindrome (29648084692).

The spelling of 12643050071 in words is "twelve billion, six hundred forty-three million, fifty thousand, seventy-one".