311030321322109 has 2 divisors, whose sum is σ = 311030321322110. Its totient is φ = 311030321322108.

The previous prime is 311030321322079. The next prime is 311030321322113. The reversal of 311030321322109 is 901223123030113.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 276587566570084 + 34442754752025 = 16630922^2 + 5868795^2 .

It is a cyclic number.

It is not a de Polignac number, because 311030321322109 - 2¹³ = 311030321313917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (311030321322169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155515160661054 + 155515160661055.

It is an arithmetic number, because the mean of its divisors is an integer number (155515160661055).

Almost surely, 2^{311030321322109} is an apocalyptic number.

It is an amenable number.

311030321322109 is a deficient number, since it is larger than the sum of its proper divisors (1).

311030321322109 is an equidigital number, since it uses as much as digits as its factorization.

311030321322109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 31.

The spelling of 311030321322109 in words is "three hundred eleven trillion, thirty billion, three hundred twenty-one million, three hundred twenty-two thousand, one hundred nine".