321303210113 has 2 divisors, whose sum is σ = 321303210114. Its totient is φ = 321303210112.

The previous prime is 321303210077. The next prime is 321303210143. The reversal of 321303210113 is 311012303123.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 313008918784 + 8294291329 = 559472^2 + 91073^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-321303210113 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (321303210143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160651605056 + 160651605057.

It is an arithmetic number, because the mean of its divisors is an integer number (160651605057).

Almost surely, 2^321303210113 is an apocalyptic number.

It is an amenable number.

321303210113 is a deficient number, since it is larger than the sum of its proper divisors (1).

321303210113 is an equidigital number, since it uses as much as digits as its factorization.

321303210113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 321303210113 its reverse (311012303123), we get a palindrome (632315513236).

The spelling of 321303210113 in words is "three hundred twenty-one billion, three hundred three million, two hundred ten thousand, one hundred thirteen".