311230153109 has 2 divisors, whose sum is σ = 311230153110. Its totient is φ = 311230153108.

The previous prime is 311230153103. The next prime is 311230153111. The reversal of 311230153109 is 901351032113.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 265820674084 + 45409479025 = 515578^2 + 213095^2 .

It is a cyclic number.

It is not a de Polignac number, because 311230153109 - 2⁸ = 311230152853 is a prime.

It is a Sophie Germain prime.

Together with 311230153111, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (311230153103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155615076554 + 155615076555.

It is an arithmetic number, because the mean of its divisors is an integer number (155615076555).

Almost surely, 2^311230153109 is an apocalyptic number.

It is an amenable number.

311230153109 is a deficient number, since it is larger than the sum of its proper divisors (1).

311230153109 is an equidigital number, since it uses as much as digits as its factorization.

311230153109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2430, while the sum is 29.

The spelling of 311230153109 in words is "three hundred eleven billion, two hundred thirty million, one hundred fifty-three thousand, one hundred nine".