12361042663631 has 2 divisors, whose sum is σ = 12361042663632. Its totient is φ = 12361042663630.

The previous prime is 12361042663621. The next prime is 12361042663667. The reversal of 12361042663631 is 13636624016321.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12361042663631 is a prime.

It is a super-2 number, since 2×12361042663631² (a number of 27 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12361042663621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6180521331815 + 6180521331816.

It is an arithmetic number, because the mean of its divisors is an integer number (6180521331816).

Almost surely, 2^{12361042663631} is an apocalyptic number.

12361042663631 is a deficient number, since it is larger than the sum of its proper divisors (1).

12361042663631 is an equidigital number, since it uses as much as digits as its factorization.

12361042663631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 559872, while the sum is 44.

Adding to 12361042663631 its reverse (13636624016321), we get a palindrome (25997666679952).

The spelling of 12361042663631 in words is "twelve trillion, three hundred sixty-one billion, forty-two million, six hundred sixty-three thousand, six hundred thirty-one".