243340200133 has 8 divisors (see below), whose sum is σ = 243561054200. Its totient is φ = 243119413440.

The previous prime is 243340200113. The next prime is 243340200139. The reversal of 243340200133 is 331002043342.

It can be written as a sum of positive squares in 4 ways, for example, as 54113460129 + 189226740004 = 232623^2 + 435002^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-243340200133 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 243340200098 and 243340200107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243340200139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9583891 + ... + 9609247.

It is an arithmetic number, because the mean of its divisors is an integer number (30445131775).

Almost surely, 2^243340200133 is an apocalyptic number.

It is an amenable number.

243340200133 is a deficient number, since it is larger than the sum of its proper divisors (220854067).

243340200133 is a wasteful number, since it uses less digits than its factorization.

243340200133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33687.

The product of its (nonzero) digits is 5184, while the sum is 25.

Adding to 243340200133 its reverse (331002043342), we get a palindrome (574342243475).

The spelling of 243340200133 in words is "two hundred forty-three billion, three hundred forty million, two hundred thousand, one hundred thirty-three".