231322323221189 has 2 divisors, whose sum is σ = 231322323221190. Its totient is φ = 231322323221188.

The previous prime is 231322323221179. The next prime is 231322323221219. The reversal of 231322323221189 is 981122323223132.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 227862194961025 + 3460128260164 = 15095105^2 + 1860142^2 .

It is a cyclic number.

It is not a de Polignac number, because 231322323221189 - 2²⁴ = 231322306443973 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231322323221179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115661161610594 + 115661161610595.

It is an arithmetic number, because the mean of its divisors is an integer number (115661161610595).

Almost surely, 2^{231322323221189} is an apocalyptic number.

It is an amenable number.

231322323221189 is a deficient number, since it is larger than the sum of its proper divisors (1).

231322323221189 is an equidigital number, since it uses as much as digits as its factorization.

231322323221189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 373248, while the sum is 44.

The spelling of 231322323221189 in words is "two hundred thirty-one trillion, three hundred twenty-two billion, three hundred twenty-three million, two hundred twenty-one thousand, one hundred eighty-nine".