231321344333 has 2 divisors, whose sum is σ = 231321344334. Its totient is φ = 231321344332.

The previous prime is 231321344329. The next prime is 231321344377. The reversal of 231321344333 is 333443123132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 191705616964 + 39615727369 = 437842^2 + 199037^2 .

It is a cyclic number.

It is not a de Polignac number, because 231321344333 - 2² = 231321344329 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 231321344333.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231321343333) 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, 115660672166 + 115660672167.

It is an arithmetic number, because the mean of its divisors is an integer number (115660672167).

Almost surely, 2^231321344333 is an apocalyptic number.

It is an amenable number.

231321344333 is a deficient number, since it is larger than the sum of its proper divisors (1).

231321344333 is an equidigital number, since it uses as much as digits as its factorization.

231321344333 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46656, while the sum is 32.

Adding to 231321344333 its reverse (333443123132), we get a palindrome (564764467465).

The spelling of 231321344333 in words is "two hundred thirty-one billion, three hundred twenty-one million, three hundred forty-four thousand, three hundred thirty-three".