243041003 has 2 divisors, whose sum is σ = 243041004. Its totient is φ = 243041002.

The previous prime is 243040999. The next prime is 243041033. The reversal of 243041003 is 300140342.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 243041003 - 2² = 243040999 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (243041033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121520501 + 121520502.

It is an arithmetic number, because the mean of its divisors is an integer number (121520502).

Almost surely, 2^243041003 is an apocalyptic number.

243041003 is a deficient number, since it is larger than the sum of its proper divisors (1).

243041003 is an equidigital number, since it uses as much as digits as its factorization.

243041003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 243041003 is about 15589.7723844834. The cubic root of 243041003 is about 624.0602435741.

Adding to 243041003 its reverse (300140342), we get a palindrome (543181345).

The spelling of 243041003 in words is "two hundred forty-three million, forty-one thousand, three".