321424333223393 has 2 divisors, whose sum is σ = 321424333223394. Its totient is φ = 321424333223392.

The previous prime is 321424333223339. The next prime is 321424333223473. The reversal of 321424333223393 is 393322333424123.

It is a happy number.

Together with previous prime (321424333223339) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 284285632435984 + 37138700787409 = 16860772^2 + 6094153^2 .

It is a cyclic number.

It is not a de Polignac number, because 321424333223393 - 2⁸ = 321424333223137 is a prime.

It is not a weakly prime, because it can be changed into another prime (321424333223333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160712166611696 + 160712166611697.

It is an arithmetic number, because the mean of its divisors is an integer number (160712166611697).

Almost surely, 2^{321424333223393} is an apocalyptic number.

It is an amenable number.

321424333223393 is a deficient number, since it is larger than the sum of its proper divisors (1).

321424333223393 is an equidigital number, since it uses as much as digits as its factorization.

321424333223393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5038848, while the sum is 47.

The spelling of 321424333223393 in words is "three hundred twenty-one trillion, four hundred twenty-four billion, three hundred thirty-three million, two hundred twenty-three thousand, three hundred ninety-three".