243004340203 has 16 divisors (see below), whose sum is σ = 256202092800. Its totient is φ = 230130409600.

The previous prime is 243004340149. The next prime is 243004340209. The reversal of 243004340203 is 302043400342.

It is a de Polignac number, because none of the positive numbers 2^k-243004340203 is a prime.

It is a super-3 number, since 3×243004340203³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243004340209) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5667078 + ... + 5709796.

It is an arithmetic number, because the mean of its divisors is an integer number (16012630800).

Almost surely, 2^243004340203 is an apocalyptic number.

243004340203 is a deficient number, since it is larger than the sum of its proper divisors (13197752597).

243004340203 is a wasteful number, since it uses less digits than its factorization.

243004340203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46502.

The product of its (nonzero) digits is 6912, while the sum is 25.

Adding to 243004340203 its reverse (302043400342), we get a palindrome (545047740545).

The spelling of 243004340203 in words is "two hundred forty-three billion, four million, three hundred forty thousand, two hundred three".