321033312402073 has 2 divisors, whose sum is σ = 321033312402074. Its totient is φ = 321033312402072.

The previous prime is 321033312402007. The next prime is 321033312402107. The reversal of 321033312402073 is 370204213330123.

It is an a-pointer prime, because the next prime (321033312402107) can be obtained adding 321033312402073 to its sum of digits (34).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 229976830710169 + 91056481691904 = 15164987^2 + 9542352^2 .

It is a cyclic number.

It is not a de Polignac number, because 321033312402073 - 2¹³ = 321033312393881 is a prime.

It is not a weakly prime, because it can be changed into another prime (321033312403073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160516656201036 + 160516656201037.

It is an arithmetic number, because the mean of its divisors is an integer number (160516656201037).

Almost surely, 2^{321033312402073} is an apocalyptic number.

It is an amenable number.

321033312402073 is a deficient number, since it is larger than the sum of its proper divisors (1).

321033312402073 is an equidigital number, since it uses as much as digits as its factorization.

321033312402073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 34.

Adding to 321033312402073 its reverse (370204213330123), we get a palindrome (691237525732196).

The spelling of 321033312402073 in words is "three hundred twenty-one trillion, thirty-three billion, three hundred twelve million, four hundred two thousand, seventy-three".