12643011307 has 2 divisors, whose sum is σ = 12643011308. Its totient is φ = 12643011306.

The previous prime is 12643011301. The next prime is 12643011319. The reversal of 12643011307 is 70311034621.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12643011307 is a prime.

It is not a weakly prime, because it can be changed into another prime (12643011301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6321505653 + 6321505654.

It is an arithmetic number, because the mean of its divisors is an integer number (6321505654).

Almost surely, 2^12643011307 is an apocalyptic number.

12643011307 is a deficient number, since it is larger than the sum of its proper divisors (1).

12643011307 is an equidigital number, since it uses as much as digits as its factorization.

12643011307 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 28.

Adding to 12643011307 its reverse (70311034621), we get a palindrome (82954045928).

The spelling of 12643011307 in words is "twelve billion, six hundred forty-three million, eleven thousand, three hundred seven".