243344243047 has 2 divisors, whose sum is σ = 243344243048. Its totient is φ = 243344243046.

The previous prime is 243344242987. The next prime is 243344243119. The reversal of 243344243047 is 740342443342.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 243344243047 - 2¹⁵ = 243344210279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243344244047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121672121523 + 121672121524.

It is an arithmetic number, because the mean of its divisors is an integer number (121672121524).

Almost surely, 2^243344243047 is an apocalyptic number.

243344243047 is a deficient number, since it is larger than the sum of its proper divisors (1).

243344243047 is an equidigital number, since it uses as much as digits as its factorization.

243344243047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 774144, while the sum is 40.

Adding to 243344243047 its reverse (740342443342), we get a palindrome (983686686389).

The spelling of 243344243047 in words is "two hundred forty-three billion, three hundred forty-four million, two hundred forty-three thousand, forty-seven".