12634241261 has 2 divisors, whose sum is σ = 12634241262. Its totient is φ = 12634241260.

The previous prime is 12634241201. The next prime is 12634241287. The reversal of 12634241261 is 16214243621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11131516036 + 1502725225 = 105506^2 + 38765^2 .

It is a cyclic number.

It is not a de Polignac number, because 12634241261 - 2¹⁰ = 12634240237 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12634241201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6317120630 + 6317120631.

It is an arithmetic number, because the mean of its divisors is an integer number (6317120631).

Almost surely, 2^12634241261 is an apocalyptic number.

It is an amenable number.

12634241261 is a deficient number, since it is larger than the sum of its proper divisors (1).

12634241261 is an equidigital number, since it uses as much as digits as its factorization.

12634241261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13824, while the sum is 32.

Adding to 12634241261 its reverse (16214243621), we get a palindrome (28848484882).

The spelling of 12634241261 in words is "twelve billion, six hundred thirty-four million, two hundred forty-one thousand, two hundred sixty-one".