243441043 has 2 divisors, whose sum is σ = 243441044. Its totient is φ = 243441042.

The previous prime is 243441041. The next prime is 243441113. The reversal of 243441043 is 340144342.

243441043 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 243441043 - 2¹ = 243441041 is a prime.

Together with 243441041, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 243440999 and 243441017.

It is not a weakly prime, because it can be changed into another prime (243441041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121720521 + 121720522.

It is an arithmetic number, because the mean of its divisors is an integer number (121720522).

Almost surely, 2^243441043 is an apocalyptic number.

243441043 is a deficient number, since it is larger than the sum of its proper divisors (1).

243441043 is an equidigital number, since it uses as much as digits as its factorization.

243441043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 243441043 is about 15602.5973158317. The cubic root of 243441043 is about 624.4024522407.

Adding to 243441043 its reverse (340144342), we get a palindrome (583585385).

The spelling of 243441043 in words is "two hundred forty-three million, four hundred forty-one thousand, forty-three".