12642422311 has 2 divisors, whose sum is σ = 12642422312. Its totient is φ = 12642422310.

The previous prime is 12642422269. The next prime is 12642422327. The reversal of 12642422311 is 11322424621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12642422311 - 2¹⁹ = 12641898023 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12642422311.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12642422341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6321211155 + 6321211156.

It is an arithmetic number, because the mean of its divisors is an integer number (6321211156).

Almost surely, 2^12642422311 is an apocalyptic number.

12642422311 is a deficient number, since it is larger than the sum of its proper divisors (1).

12642422311 is an equidigital number, since it uses as much as digits as its factorization.

12642422311 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4608, while the sum is 28.

Adding to 12642422311 its reverse (11322424621), we get a palindrome (23964846932).

The spelling of 12642422311 in words is "twelve billion, six hundred forty-two million, four hundred twenty-two thousand, three hundred eleven".