243443310041 has 2 divisors, whose sum is σ = 243443310042. Its totient is φ = 243443310040.

The previous prime is 243443310037. The next prime is 243443310079. The reversal of 243443310041 is 140013344342.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 213262934416 + 30180375625 = 461804^2 + 173725^2 .

It is a cyclic number.

It is not a de Polignac number, because 243443310041 - 2² = 243443310037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 243443309986 and 243443310013.

It is not a weakly prime, because it can be changed into another prime (243443300041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121721655020 + 121721655021.

It is an arithmetic number, because the mean of its divisors is an integer number (121721655021).

Almost surely, 2^243443310041 is an apocalyptic number.

It is an amenable number.

243443310041 is a deficient number, since it is larger than the sum of its proper divisors (1).

243443310041 is an equidigital number, since it uses as much as digits as its factorization.

243443310041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 243443310041 its reverse (140013344342), we get a palindrome (383456654383).

The spelling of 243443310041 in words is "two hundred forty-three billion, four hundred forty-three million, three hundred ten thousand, forty-one".