231703689536197 has 2 divisors, whose sum is σ = 231703689536198. Its totient is φ = 231703689536196.

The previous prime is 231703689536153. The next prime is 231703689536257. The reversal of 231703689536197 is 791635986307132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 161940869908801 + 69762819627396 = 12725599^2 + 8352414^2 .

It is a cyclic number.

It is not a de Polignac number, because 231703689536197 - 2⁷ = 231703689536069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231703689536147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115851844768098 + 115851844768099.

It is an arithmetic number, because the mean of its divisors is an integer number (115851844768099).

Almost surely, 2^{231703689536197} is an apocalyptic number.

It is an amenable number.

231703689536197 is a deficient number, since it is larger than the sum of its proper divisors (1).

231703689536197 is an equidigital number, since it uses as much as digits as its factorization.

231703689536197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 308629440, while the sum is 70.

The spelling of 231703689536197 in words is "two hundred thirty-one trillion, seven hundred three billion, six hundred eighty-nine million, five hundred thirty-six thousand, one hundred ninety-seven".