231443304319 has 2 divisors, whose sum is σ = 231443304320. Its totient is φ = 231443304318.

The previous prime is 231443304299. The next prime is 231443304343. The reversal of 231443304319 is 913403344132.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 231443304319 - 2⁹ = 231443303807 is a prime.

It is a super-2 number, since 2×231443304319² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231443334319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115721652159 + 115721652160.

It is an arithmetic number, because the mean of its divisors is an integer number (115721652160).

Almost surely, 2^231443304319 is an apocalyptic number.

231443304319 is a deficient number, since it is larger than the sum of its proper divisors (1).

231443304319 is an equidigital number, since it uses as much as digits as its factorization.

231443304319 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 93312, while the sum is 37.

The spelling of 231443304319 in words is "two hundred thirty-one billion, four hundred forty-three million, three hundred four thousand, three hundred nineteen".