12631866101 has 2 divisors, whose sum is σ = 12631866102. Its totient is φ = 12631866100.

The previous prime is 12631866043. The next prime is 12631866109. The reversal of 12631866101 is 10166813621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12200307025 + 431559076 = 110455^2 + 20774^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12631866101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12631866109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6315933050 + 6315933051.

It is an arithmetic number, because the mean of its divisors is an integer number (6315933051).

Almost surely, 2^12631866101 is an apocalyptic number.

It is an amenable number.

12631866101 is a deficient number, since it is larger than the sum of its proper divisors (1).

12631866101 is an equidigital number, since it uses as much as digits as its factorization.

12631866101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 35.

The spelling of 12631866101 in words is "twelve billion, six hundred thirty-one million, eight hundred sixty-six thousand, one hundred one".