321203223298973 has 2 divisors, whose sum is σ = 321203223298974. Its totient is φ = 321203223298972.

The previous prime is 321203223298967. The next prime is 321203223299017. The reversal of 321203223298973 is 379892322302123.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 171753527397529 + 149449695901444 = 13105477^2 + 12224962^2 .

It is a cyclic number.

It is not a de Polignac number, because 321203223298973 - 2⁴ = 321203223298957 is a prime.

It is a super-2 number, since 2×321203223298973² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (321203223298963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160601611649486 + 160601611649487.

It is an arithmetic number, because the mean of its divisors is an integer number (160601611649487).

Almost surely, 2^{321203223298973} is an apocalyptic number.

It is an amenable number.

321203223298973 is a deficient number, since it is larger than the sum of its proper divisors (1).

321203223298973 is an equidigital number, since it uses as much as digits as its factorization.

321203223298973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11757312, while the sum is 56.

The spelling of 321203223298973 in words is "three hundred twenty-one trillion, two hundred three billion, two hundred twenty-three million, two hundred ninety-eight thousand, nine hundred seventy-three".