312034343209 has 2 divisors, whose sum is σ = 312034343210. Its totient is φ = 312034343208.

The previous prime is 312034343147. The next prime is 312034343221. The reversal of 312034343209 is 902343430213.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 187991616400 + 124042726809 = 433580^2 + 352197^2 .

It is a cyclic number.

It is not a de Polignac number, because 312034343209 - 2⁷ = 312034343081 is a prime.

It is not a weakly prime, because it can be changed into another prime (312034343279) 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, 156017171604 + 156017171605.

It is an arithmetic number, because the mean of its divisors is an integer number (156017171605).

Almost surely, 2^312034343209 is an apocalyptic number.

It is an amenable number.

312034343209 is a deficient number, since it is larger than the sum of its proper divisors (1).

312034343209 is an equidigital number, since it uses as much as digits as its factorization.

312034343209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46656, while the sum is 34.

The spelling of 312034343209 in words is "three hundred twelve billion, thirty-four million, three hundred forty-three thousand, two hundred nine".