321310113203 has 2 divisors, whose sum is σ = 321310113204. Its totient is φ = 321310113202.

The previous prime is 321310113197. The next prime is 321310113209. The reversal of 321310113203 is 302311013123.

It is a balanced prime because it is at equal distance from previous prime (321310113197) and next prime (321310113209).

It is a cyclic number.

It is not a de Polignac number, because 321310113203 - 2³⁸ = 46432206259 is a prime.

It is not a weakly prime, because it can be changed into another prime (321310113209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160655056601 + 160655056602.

It is an arithmetic number, because the mean of its divisors is an integer number (160655056602).

Almost surely, 2^321310113203 is an apocalyptic number.

321310113203 is a deficient number, since it is larger than the sum of its proper divisors (1).

321310113203 is an equidigital number, since it uses as much as digits as its factorization.

321310113203 is an odious number, because the sum of its binary digits is odd.

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

Adding to 321310113203 its reverse (302311013123), we get a palindrome (623621126326).

The spelling of 321310113203 in words is "three hundred twenty-one billion, three hundred ten million, one hundred thirteen thousand, two hundred three".