321203340202193 has 2 divisors, whose sum is σ = 321203340202194. Its totient is φ = 321203340202192.

The previous prime is 321203340202189. The next prime is 321203340202207. The reversal of 321203340202193 is 391202043302123.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 291548214497089 + 29655125705104 = 17074783^2 + 5445652^2 .

It is an emirp because it is prime and its reverse (391202043302123) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 321203340202193 - 2² = 321203340202189 is a prime.

It is not a weakly prime, because it can be changed into another prime (321203340202793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160601670101096 + 160601670101097.

It is an arithmetic number, because the mean of its divisors is an integer number (160601670101097).

Almost surely, 2^{321203340202193} is an apocalyptic number.

It is an amenable number.

321203340202193 is a deficient number, since it is larger than the sum of its proper divisors (1).

321203340202193 is an equidigital number, since it uses as much as digits as its factorization.

321203340202193 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 35.

The spelling of 321203340202193 in words is "three hundred twenty-one trillion, two hundred three billion, three hundred forty million, two hundred two thousand, one hundred ninety-three".