12779323211 has 2 divisors, whose sum is σ = 12779323212. Its totient is φ = 12779323210.

The previous prime is 12779323199. The next prime is 12779323231. The reversal of 12779323211 is 11232397721.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12779323211 is a prime.

It is a super-2 number, since 2×12779323211² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12779323231) 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, 6389661605 + 6389661606.

It is an arithmetic number, because the mean of its divisors is an integer number (6389661606).

Almost surely, 2^12779323211 is an apocalyptic number.

12779323211 is a deficient number, since it is larger than the sum of its proper divisors (1).

12779323211 is an equidigital number, since it uses as much as digits as its factorization.

12779323211 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31752, while the sum is 38.

The spelling of 12779323211 in words is "twelve billion, seven hundred seventy-nine million, three hundred twenty-three thousand, two hundred eleven".