231326383623289 has 2 divisors, whose sum is σ = 231326383623290. Its totient is φ = 231326383623288.

The previous prime is 231326383623103. The next prime is 231326383623323. The reversal of 231326383623289 is 982326383623132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 137852137692025 + 93474245931264 = 11741045^2 + 9668208^2 .

It is a cyclic number.

It is not a de Polignac number, because 231326383623289 - 2⁴⁷ = 90588895267961 is a prime.

It is not a weakly prime, because it can be changed into another prime (231326183623289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115663191811644 + 115663191811645.

It is an arithmetic number, because the mean of its divisors is an integer number (115663191811645).

Almost surely, 2^{231326383623289} is an apocalyptic number.

It is an amenable number.

231326383623289 is a deficient number, since it is larger than the sum of its proper divisors (1).

231326383623289 is an equidigital number, since it uses as much as digits as its factorization.

231326383623289 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 80621568, while the sum is 61.

The spelling of 231326383623289 in words is "two hundred thirty-one trillion, three hundred twenty-six billion, three hundred eighty-three million, six hundred twenty-three thousand, two hundred eighty-nine".