243323144005 has 8 divisors (see below), whose sum is σ = 292025892600. Its totient is φ = 194633102016.

The previous prime is 243323143979. The next prime is 243323144093. The reversal of 243323144005 is 500441323342.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 140547760609 + 102775383396 = 374897^2 + 320586^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 243323144005 - 2¹⁹ = 243322619717 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3134470 + ... + 3211159.

It is an arithmetic number, because the mean of its divisors is an integer number (36503236575).

Almost surely, 2^243323144005 is an apocalyptic number.

It is an amenable number.

243323144005 is a deficient number, since it is larger than the sum of its proper divisors (48702748595).

243323144005 is an equidigital number, since it uses as much as digits as its factorization.

243323144005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6353303.

The product of its (nonzero) digits is 34560, while the sum is 31.

Adding to 243323144005 its reverse (500441323342), we get a palindrome (743764467347).

The spelling of 243323144005 in words is "two hundred forty-three billion, three hundred twenty-three million, one hundred forty-four thousand, five".