243303004413 has 18 divisors (see below), whose sum is σ = 408815253054. Its totient is φ = 139030287984.

The previous prime is 243303004393. The next prime is 243303004421. The reversal of 243303004413 is 314400303342.

243303004413 is a `hidden beast` number, since 24 + 330 + 300 + 4 + 4 + 1 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 209446268409 + 33856736004 = 457653^2 + 184002^2 .

It is not a de Polignac number, because 243303004413 - 2⁹ = 243303003901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243303006413) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 275853306 + ... + 275854187.

It is an arithmetic number, because the mean of its divisors is an integer number (22711958503).

Almost surely, 2^243303004413 is an apocalyptic number.

It is an amenable number.

243303004413 is a deficient number, since it is larger than the sum of its proper divisors (165512248641).

243303004413 is a wasteful number, since it uses less digits than its factorization.

243303004413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551707513 (or 551707503 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 27.

Adding to 243303004413 its reverse (314400303342), we get a palindrome (557703307755).

The spelling of 243303004413 in words is "two hundred forty-three billion, three hundred three million, four thousand, four hundred thirteen".