243123353504 has 12 divisors (see below), whose sum is σ = 478649102274. Its totient is φ = 121561676736.

The previous prime is 243123353479. The next prime is 243123353507. The reversal of 243123353504 is 405353321342.

243123353504 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 210816885904 + 32306467600 = 459148^2 + 179740^2 .

It is a super-3 number, since 3×243123353504³ (a number of 35 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (243123353507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3798802367 + ... + 3798802430.

Almost surely, 2^243123353504 is an apocalyptic number.

It is an amenable number.

243123353504 is a deficient number, since it is larger than the sum of its proper divisors (235525748770).

243123353504 is an equidigital number, since it uses as much as digits as its factorization.

243123353504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7597604807 (or 7597604799 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 35.

Adding to 243123353504 its reverse (405353321342), we get a palindrome (648476674846).

The spelling of 243123353504 in words is "two hundred forty-three billion, one hundred twenty-three million, three hundred fifty-three thousand, five hundred four".