231646298895911 has 2 divisors, whose sum is σ = 231646298895912. Its totient is φ = 231646298895910.

The previous prime is 231646298895899. The next prime is 231646298896013. The reversal of 231646298895911 is 119598892646132.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 231646298895911 - 2³⁰ = 231645225154087 is a prime.

It is a super-2 number, since 2×231646298895911² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231646298895311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115823149447955 + 115823149447956.

It is an arithmetic number, because the mean of its divisors is an integer number (115823149447956).

Almost surely, 2^{231646298895911} is an apocalyptic number.

231646298895911 is a deficient number, since it is larger than the sum of its proper divisors (1).

231646298895911 is an equidigital number, since it uses as much as digits as its factorization.

231646298895911 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 403107840, while the sum is 74.

The spelling of 231646298895911 in words is "two hundred thirty-one trillion, six hundred forty-six billion, two hundred ninety-eight million, eight hundred ninety-five thousand, nine hundred eleven".