231631423605299 has 2 divisors, whose sum is σ = 231631423605300. Its totient is φ = 231631423605298.

The previous prime is 231631423605223. The next prime is 231631423605343. The reversal of 231631423605299 is 992506324136132.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231631423605299 is a prime.

It is not a weakly prime, because it can be changed into another prime (231631423605209) 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, 115815711802649 + 115815711802650.

It is an arithmetic number, because the mean of its divisors is an integer number (115815711802650).

Almost surely, 2^{231631423605299} is an apocalyptic number.

231631423605299 is a deficient number, since it is larger than the sum of its proper divisors (1).

231631423605299 is an equidigital number, since it uses as much as digits as its factorization.

231631423605299 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12597120, while the sum is 56.

The spelling of 231631423605299 in words is "two hundred thirty-one trillion, six hundred thirty-one billion, four hundred twenty-three million, six hundred five thousand, two hundred ninety-nine".