321135305325353 has 2 divisors, whose sum is σ = 321135305325354. Its totient is φ = 321135305325352.

The previous prime is 321135305325319. The next prime is 321135305325469. The reversal of 321135305325353 is 353523503531123.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 224648927053849 + 96486378271504 = 14988293^2 + 9822748^2 .

It is a cyclic number.

It is not a de Polignac number, because 321135305325353 - 2³⁴ = 321118125456169 is a prime.

It is not a weakly prime, because it can be changed into another prime (321135305325313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160567652662676 + 160567652662677.

It is an arithmetic number, because the mean of its divisors is an integer number (160567652662677).

Almost surely, 2^{321135305325353} is an apocalyptic number.

It is an amenable number.

321135305325353 is a deficient number, since it is larger than the sum of its proper divisors (1).

321135305325353 is an equidigital number, since it uses as much as digits as its factorization.

321135305325353 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1822500, while the sum is 44.

Adding to 321135305325353 its reverse (353523503531123), we get a palindrome (674658808856476).

The spelling of 321135305325353 in words is "three hundred twenty-one trillion, one hundred thirty-five billion, three hundred five million, three hundred twenty-five thousand, three hundred fifty-three".