243034423 has 2 divisors, whose sum is σ = 243034424. Its totient is φ = 243034422.

The previous prime is 243034403. The next prime is 243034427. The reversal of 243034423 is 324430342.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 243034423 - 2¹⁷ = 242903351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243034427) 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, 121517211 + 121517212.

It is an arithmetic number, because the mean of its divisors is an integer number (121517212).

Almost surely, 2^243034423 is an apocalyptic number.

243034423 is a deficient number, since it is larger than the sum of its proper divisors (1).

243034423 is an equidigital number, since it uses as much as digits as its factorization.

243034423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 25.

The square root of 243034423 is about 15589.5613472605. The cubic root of 243034423 is about 624.0546116665.

Adding to 243034423 its reverse (324430342), we get a palindrome (567464765).

The spelling of 243034423 in words is "two hundred forty-three million, thirty-four thousand, four hundred twenty-three".