243430440003 has 12 divisors (see below), whose sum is σ = 351709638280. Its totient is φ = 162246394656.

The previous prime is 243430439977. The next prime is 243430440013. The reversal of 243430440003 is 300044034342.

It is not a de Polignac number, because 243430440003 - 2⁵ = 243430439971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243430440013) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3342418 + ... + 3414471.

Almost surely, 2^243430440003 is an apocalyptic number.

243430440003 is a deficient number, since it is larger than the sum of its proper divisors (108279198277).

243430440003 is a wasteful number, since it uses less digits than its factorization.

243430440003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6760898 (or 6760895 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 27.

Adding to 243430440003 its reverse (300044034342), we get a palindrome (543474474345).

The spelling of 243430440003 in words is "two hundred forty-three billion, four hundred thirty million, four hundred forty thousand, three".