12195289497631 has 2 divisors, whose sum is σ = 12195289497632. Its totient is φ = 12195289497630.

The previous prime is 12195289497571. The next prime is 12195289497641. The reversal of 12195289497631 is 13679498259121.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12195289497631 is a prime.

It is a super-2 number, since 2×12195289497631² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12195289497641) 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, 6097644748815 + 6097644748816.

It is an arithmetic number, because the mean of its divisors is an integer number (6097644748816).

Almost surely, 2^{12195289497631} is an apocalyptic number.

12195289497631 is a deficient number, since it is larger than the sum of its proper divisors (1).

12195289497631 is an equidigital number, since it uses as much as digits as its factorization.

12195289497631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 58786560, while the sum is 67.

The spelling of 12195289497631 in words is "twelve trillion, one hundred ninety-five billion, two hundred eighty-nine million, four hundred ninety-seven thousand, six hundred thirty-one".