243430340003 has 4 divisors (see below), whose sum is σ = 251282931648. Its totient is φ = 235577748360.

The previous prime is 243430339993. The next prime is 243430340009. The reversal of 243430340003 is 300043034342.

243430340003 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 243430340003 - 2⁴ = 243430339987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243430340009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3926295776 + ... + 3926295837.

It is an arithmetic number, because the mean of its divisors is an integer number (62820732912).

Almost surely, 2^243430340003 is an apocalyptic number.

243430340003 is a deficient number, since it is larger than the sum of its proper divisors (7852591645).

243430340003 is an equidigital number, since it uses as much as digits as its factorization.

243430340003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7852591644.

The product of its (nonzero) digits is 10368, while the sum is 26.

Adding to 243430340003 its reverse (300043034342), we get a palindrome (543473374345).

The spelling of 243430340003 in words is "two hundred forty-three billion, four hundred thirty million, three hundred forty thousand, three".