10343857309 has 2 divisors, whose sum is σ = 10343857310. Its totient is φ = 10343857308.

The previous prime is 10343857211. The next prime is 10343857319. The reversal of 10343857309 is 90375834301.

It is a happy number.

10343857309 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10119756409 + 224100900 = 100597^2 + 14970^2 .

It is an emirp because it is prime and its reverse (90375834301) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10343857309 - 2²⁷ = 10209639581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10343857319) 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, 5171928654 + 5171928655.

It is an arithmetic number, because the mean of its divisors is an integer number (5171928655).

Almost surely, 2^10343857309 is an apocalyptic number.

It is an amenable number.

10343857309 is a deficient number, since it is larger than the sum of its proper divisors (1).

10343857309 is an equidigital number, since it uses as much as digits as its factorization.

10343857309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 272160, while the sum is 43.

The spelling of 10343857309 in words is "ten billion, three hundred forty-three million, eight hundred fifty-seven thousand, three hundred nine".