243113454047 has 2 divisors, whose sum is σ = 243113454048. Its totient is φ = 243113454046.

The previous prime is 243113453963. The next prime is 243113454061. The reversal of 243113454047 is 740454311342.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 243113454047 - 2¹² = 243113449951 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 243113454047.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243113454247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121556727023 + 121556727024.

It is an arithmetic number, because the mean of its divisors is an integer number (121556727024).

Almost surely, 2^243113454047 is an apocalyptic number.

243113454047 is a deficient number, since it is larger than the sum of its proper divisors (1).

243113454047 is an equidigital number, since it uses as much as digits as its factorization.

243113454047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 161280, while the sum is 38.

Adding to 243113454047 its reverse (740454311342), we get a palindrome (983567765389).

The spelling of 243113454047 in words is "two hundred forty-three billion, one hundred thirteen million, four hundred fifty-four thousand, forty-seven".