243323003534 has 24 divisors (see below), whose sum is σ = 398913611400. Its totient is φ = 111253348128.

The previous prime is 243323003531. The next prime is 243323003617. The reversal of 243323003534 is 435300323342.

243323003534 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 243323003534.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243323003531) 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 11 ways as a sum of consecutive naturals, for example, 3327809 + ... + 3400140.

It is an arithmetic number, because the mean of its divisors is an integer number (16621400475).

Almost surely, 2^243323003534 is an apocalyptic number.

243323003534 is a deficient number, since it is larger than the sum of its proper divisors (155590607866).

243323003534 is a wasteful number, since it uses less digits than its factorization.

243323003534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6728084 (or 6728071 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 32.

Adding to 243323003534 its reverse (435300323342), we get a palindrome (678623326876).

The spelling of 243323003534 in words is "two hundred forty-three billion, three hundred twenty-three million, three thousand, five hundred thirty-four".