243344011 has 2 divisors, whose sum is σ = 243344012. Its totient is φ = 243344010.

The previous prime is 243343999. The next prime is 243344027. The reversal of 243344011 is 110443342.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 243344011 - 2¹⁹ = 242819723 is a prime.

It is not a weakly prime, because it can be changed into another prime (243344111) 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, 121672005 + 121672006.

It is an arithmetic number, because the mean of its divisors is an integer number (121672006).

Almost surely, 2^243344011 is an apocalyptic number.

243344011 is a deficient number, since it is larger than the sum of its proper divisors (1).

243344011 is an equidigital number, since it uses as much as digits as its factorization.

243344011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 243344011 is about 15599.4875236336. The cubic root of 243344011 is about 624.3194820214.

Adding to 243344011 its reverse (110443342), we get a palindrome (353787353).

The spelling of 243344011 in words is "two hundred forty-three million, three hundred forty-four thousand, eleven".