309341880329 has 2 divisors, whose sum is σ = 309341880330. Its totient is φ = 309341880328.

The previous prime is 309341880319. The next prime is 309341880359. The reversal of 309341880329 is 923088143903.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 183350958025 + 125990922304 = 428195^2 + 354952^2 .

It is a cyclic number.

It is not a de Polignac number, because 309341880329 - 2²⁰ = 309340831753 is a prime.

It is not a weakly prime, because it can be changed into another prime (309341880319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 154670940164 + 154670940165.

It is an arithmetic number, because the mean of its divisors is an integer number (154670940165).

Almost surely, 2^309341880329 is an apocalyptic number.

It is an amenable number.

309341880329 is a deficient number, since it is larger than the sum of its proper divisors (1).

309341880329 is an equidigital number, since it uses as much as digits as its factorization.

309341880329 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1119744, while the sum is 50.

The spelling of 309341880329 in words is "three hundred nine billion, three hundred forty-one million, eight hundred eighty thousand, three hundred twenty-nine".