311222302032097 has 2 divisors, whose sum is σ = 311222302032098. Its totient is φ = 311222302032096.

The previous prime is 311222302032023. The next prime is 311222302032133. The reversal of 311222302032097 is 790230203222113.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 213272405614801 + 97949896417296 = 14603849^2 + 9896964^2 .

It is an emirp because it is prime and its reverse (790230203222113) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-311222302032097 is a prime.

It is not a weakly prime, because it can be changed into another prime (311222302032997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155611151016048 + 155611151016049.

It is an arithmetic number, because the mean of its divisors is an integer number (155611151016049).

Almost surely, 2^{311222302032097} is an apocalyptic number.

It is an amenable number.

311222302032097 is a deficient number, since it is larger than the sum of its proper divisors (1).

311222302032097 is an equidigital number, since it uses as much as digits as its factorization.

311222302032097 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 37.

The spelling of 311222302032097 in words is "three hundred eleven trillion, two hundred twenty-two billion, three hundred two million, thirty-two thousand, ninety-seven".