1323343409 has 4 divisors (see below), whose sum is σ = 1325298804. Its totient is φ = 1321388016.

The previous prime is 1323343397. The next prime is 1323343453. The reversal of 1323343409 is 9043433231.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1251178384 + 72165025 = 35372^2 + 8495^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1323343409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1323343459) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 976682 + ... + 978035.

It is an arithmetic number, because the mean of its divisors is an integer number (331324701).

Almost surely, 2^1323343409 is an apocalyptic number.

It is an amenable number.

1323343409 is a deficient number, since it is larger than the sum of its proper divisors (1955395).

1323343409 is an equidigital number, since it uses as much as digits as its factorization.

1323343409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1955394.

The product of its (nonzero) digits is 23328, while the sum is 32.

The square root of 1323343409 is about 36377.7873021436. The cubic root of 1323343409 is about 1097.8866888045.

The spelling of 1323343409 in words is "one billion, three hundred twenty-three million, three hundred forty-three thousand, four hundred nine".