243302322247 has 2 divisors, whose sum is σ = 243302322248. Its totient is φ = 243302322246.

The previous prime is 243302322229. The next prime is 243302322257. The reversal of 243302322247 is 742223203342.

243302322247 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-243302322247 is a prime.

It is a super-2 number, since 2×243302322247² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243302322257) 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, 121651161123 + 121651161124.

It is an arithmetic number, because the mean of its divisors is an integer number (121651161124).

Almost surely, 2^243302322247 is an apocalyptic number.

243302322247 is a deficient number, since it is larger than the sum of its proper divisors (1).

243302322247 is an equidigital number, since it uses as much as digits as its factorization.

243302322247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96768, while the sum is 34.

Adding to 243302322247 its reverse (742223203342), we get a palindrome (985525525589).

The spelling of 243302322247 in words is "two hundred forty-three billion, three hundred two million, three hundred twenty-two thousand, two hundred forty-seven".