243204230441 has 2 divisors, whose sum is σ = 243204230442. Its totient is φ = 243204230440.

The previous prime is 243204230387. The next prime is 243204230443. The reversal of 243204230441 is 144032402342.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 240079420441 + 3124810000 = 489979^2 + 55900^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-243204230441 is a prime.

It is a super-3 number, since 3×243204230441³ (a number of 35 digits) contains 333 as substring.

Together with 243204230443, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (243204230443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121602115220 + 121602115221.

It is an arithmetic number, because the mean of its divisors is an integer number (121602115221).

Almost surely, 2^243204230441 is an apocalyptic number.

It is an amenable number.

243204230441 is a deficient number, since it is larger than the sum of its proper divisors (1).

243204230441 is an equidigital number, since it uses as much as digits as its factorization.

243204230441 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 243204230441 its reverse (144032402342), we get a palindrome (387236632783).

The spelling of 243204230441 in words is "two hundred forty-three billion, two hundred four million, two hundred thirty thousand, four hundred forty-one".