243001223 has 2 divisors, whose sum is σ = 243001224. Its totient is φ = 243001222.

The previous prime is 243001211. The next prime is 243001229. The reversal of 243001223 is 322100342.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 243001223 - 2⁴ = 243001207 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243001229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121500611 + 121500612.

It is an arithmetic number, because the mean of its divisors is an integer number (121500612).

Almost surely, 2^243001223 is an apocalyptic number.

243001223 is a deficient number, since it is larger than the sum of its proper divisors (1).

243001223 is an equidigital number, since it uses as much as digits as its factorization.

243001223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 243001223 is about 15588.4964958138. The cubic root of 243001223 is about 624.0261938037.

Adding to 243001223 its reverse (322100342), we get a palindrome (565101565).

The spelling of 243001223 in words is "two hundred forty-three million, one thousand, two hundred twenty-three".