243104324121 has 12 divisors (see below), whose sum is σ = 352970126548. Its totient is φ = 161229809664.

The previous prime is 243104324063. The next prime is 243104324131. The reversal of 243104324121 is 121423401342.

243104324121 is a `hidden beast` number, since 2 + 4 + 310 + 4 + 324 + 1 + 21 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 143667531225 + 99436792896 = 379035^2 + 315336^2 .

It is not a de Polignac number, because 243104324121 - 2⁷ = 243104323993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243104324131) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 69976480 + ... + 69979953.

Almost surely, 2^243104324121 is an apocalyptic number.

It is an amenable number.

243104324121 is a deficient number, since it is larger than the sum of its proper divisors (109865802427).

243104324121 is a wasteful number, since it uses less digits than its factorization.

243104324121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139956632 (or 139956629 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 243104324121 its reverse (121423401342), we get a palindrome (364527725463).

The spelling of 243104324121 in words is "two hundred forty-three billion, one hundred four million, three hundred twenty-four thousand, one hundred twenty-one".