1305320510339 has 2 divisors, whose sum is σ = 1305320510340. Its totient is φ = 1305320510338.

The previous prime is 1305320510321. The next prime is 1305320510383. The reversal of 1305320510339 is 9330150235031.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1305320510339 - 2¹⁶ = 1305320444803 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 1305320510299 and 1305320510308.

It is not a weakly prime, because it can be changed into another prime (1305320510309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 652660255169 + 652660255170.

It is an arithmetic number, because the mean of its divisors is an integer number (652660255170).

Almost surely, 2^{1305320510339} is an apocalyptic number.

1305320510339 is a deficient number, since it is larger than the sum of its proper divisors (1).

1305320510339 is an equidigital number, since it uses as much as digits as its factorization.

1305320510339 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36450, while the sum is 35.

The spelling of 1305320510339 in words is "one trillion, three hundred five billion, three hundred twenty million, five hundred ten thousand, three hundred thirty-nine".