1323008243 has 2 divisors, whose sum is σ = 1323008244. Its totient is φ = 1323008242.

The previous prime is 1323008237. The next prime is 1323008263. The reversal of 1323008243 is 3428003231.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1323008243 - 2⁴ = 1323008227 is a prime.

It is a super-2 number, since 2×1323008243² = 3500701622091894098, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1323008233) 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, 661504121 + 661504122.

It is an arithmetic number, because the mean of its divisors is an integer number (661504122).

Almost surely, 2^1323008243 is an apocalyptic number.

1323008243 is a deficient number, since it is larger than the sum of its proper divisors (1).

1323008243 is an equidigital number, since it uses as much as digits as its factorization.

1323008243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 1323008243 is about 36373.1802706335. The cubic root of 1323008243 is about 1097.7939929460.

The spelling of 1323008243 in words is "one billion, three hundred twenty-three million, eight thousand, two hundred forty-three".