231549695983 has 2 divisors, whose sum is σ = 231549695984. Its totient is φ = 231549695982.

The previous prime is 231549695981. The next prime is 231549696061. The reversal of 231549695983 is 389596945132.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 231549695983 - 2¹ = 231549695981 is a prime.

Together with 231549695981, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231549695981) 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, 115774847991 + 115774847992.

It is an arithmetic number, because the mean of its divisors is an integer number (115774847992).

Almost surely, 2^231549695983 is an apocalyptic number.

231549695983 is a deficient number, since it is larger than the sum of its proper divisors (1).

231549695983 is an equidigital number, since it uses as much as digits as its factorization.

231549695983 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 62985600, while the sum is 64.

The spelling of 231549695983 in words is "two hundred thirty-one billion, five hundred forty-nine million, six hundred ninety-five thousand, nine hundred eighty-three".