321223320053 has 2 divisors, whose sum is σ = 321223320054. Its totient is φ = 321223320052.

The previous prime is 321223319993. The next prime is 321223320097. The reversal of 321223320053 is 350023322123.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 283510456849 + 37712863204 = 532457^2 + 194198^2 .

It is a cyclic number.

It is not a de Polignac number, because 321223320053 - 2²⁰ = 321222271477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (321223320553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160611660026 + 160611660027.

It is an arithmetic number, because the mean of its divisors is an integer number (160611660027).

Almost surely, 2^321223320053 is an apocalyptic number.

It is an amenable number.

321223320053 is a deficient number, since it is larger than the sum of its proper divisors (1).

321223320053 is an equidigital number, since it uses as much as digits as its factorization.

321223320053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 26.

Adding to 321223320053 its reverse (350023322123), we get a palindrome (671246642176).

The spelling of 321223320053 in words is "three hundred twenty-one billion, two hundred twenty-three million, three hundred twenty thousand, fifty-three".