243323341 has 2 divisors, whose sum is σ = 243323342. Its totient is φ = 243323340.

The previous prime is 243323317. The next prime is 243323351. The reversal of 243323341 is 143323342.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 205807716 + 37515625 = 14346^2 + 6125^2 .

It is a cyclic number.

It is not a de Polignac number, because 243323341 - 2⁹ = 243322829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243323351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121661670 + 121661671.

It is an arithmetic number, because the mean of its divisors is an integer number (121661671).

Almost surely, 2^243323341 is an apocalyptic number.

It is an amenable number.

243323341 is a deficient number, since it is larger than the sum of its proper divisors (1).

243323341 is an equidigital number, since it uses as much as digits as its factorization.

243323341 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184, while the sum is 25.

The square root of 243323341 is about 15598.8249877996. The cubic root of 243323341 is about 624.3018046476.

Adding to 243323341 its reverse (143323342), we get a palindrome (386646683).

Subtracting from 243323341 its reverse (143323342), we obtain a palindrome (99999999).

The spelling of 243323341 in words is "two hundred forty-three million, three hundred twenty-three thousand, three hundred forty-one".