12806031013 has 2 divisors, whose sum is σ = 12806031014. Its totient is φ = 12806031012.

The previous prime is 12806031001. The next prime is 12806031071. The reversal of 12806031013 is 31013060821.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12795681924 + 10349089 = 113118^2 + 3217^2 .

It is a cyclic number.

It is not a de Polignac number, because 12806031013 - 2¹³ = 12806022821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12806032013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6403015506 + 6403015507.

It is an arithmetic number, because the mean of its divisors is an integer number (6403015507).

Almost surely, 2^12806031013 is an apocalyptic number.

It is an amenable number.

12806031013 is a deficient number, since it is larger than the sum of its proper divisors (1).

12806031013 is an equidigital number, since it uses as much as digits as its factorization.

12806031013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 12806031013 its reverse (31013060821), we get a palindrome (43819091834).

The spelling of 12806031013 in words is "twelve billion, eight hundred six million, thirty-one thousand, thirteen".