321025210013 has 2 divisors, whose sum is σ = 321025210014. Its totient is φ = 321025210012.

The previous prime is 321025209979. The next prime is 321025210031. The reversal of 321025210013 is 310012520123.

Together with next prime (321025210031) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 249258550564 + 71766659449 = 499258^2 + 267893^2 .

It is a cyclic number.

It is not a de Polignac number, because 321025210013 - 2³⁰ = 319951468189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (321025210213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160512605006 + 160512605007.

It is an arithmetic number, because the mean of its divisors is an integer number (160512605007).

Almost surely, 2^321025210013 is an apocalyptic number.

It is an amenable number.

321025210013 is a deficient number, since it is larger than the sum of its proper divisors (1).

321025210013 is an equidigital number, since it uses as much as digits as its factorization.

321025210013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 20.

Adding to 321025210013 its reverse (310012520123), we get a palindrome (631037730136).

The spelling of 321025210013 in words is "three hundred twenty-one billion, twenty-five million, two hundred ten thousand, thirteen".