321023404023823 has 2 divisors, whose sum is σ = 321023404023824. Its totient is φ = 321023404023822.

The previous prime is 321023404023811. The next prime is 321023404023851. The reversal of 321023404023823 is 328320404320123.

It is a weak prime.

It is an emirp because it is prime and its reverse (328320404320123) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 321023404023823 - 2³³ = 321014814089231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (321023404423823) 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, 160511702011911 + 160511702011912.

It is an arithmetic number, because the mean of its divisors is an integer number (160511702011912).

Almost surely, 2^{321023404023823} is an apocalyptic number.

321023404023823 is a deficient number, since it is larger than the sum of its proper divisors (1).

321023404023823 is an equidigital number, since it uses as much as digits as its factorization.

321023404023823 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 165888, while the sum is 37.

Adding to 321023404023823 its reverse (328320404320123), we get a palindrome (649343808343946).

The spelling of 321023404023823 in words is "three hundred twenty-one trillion, twenty-three billion, four hundred four million, twenty-three thousand, eight hundred twenty-three".