243120443103 has 12 divisors (see below), whose sum is σ = 356120086608. Its totient is φ = 159797473920.

The previous prime is 243120443101. The next prime is 243120443123. The reversal of 243120443103 is 301344021342.

243120443103 is a `hidden beast` number, since 24 + 3 + 1 + 204 + 431 + 0 + 3 = 666.

It is not a de Polignac number, because 243120443103 - 2¹ = 243120443101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243120443101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 190234450 + ... + 190235727.

It is an arithmetic number, because the mean of its divisors is an integer number (29676673884).

Almost surely, 2^243120443103 is an apocalyptic number.

243120443103 is a deficient number, since it is larger than the sum of its proper divisors (112999643505).

243120443103 is a wasteful number, since it uses less digits than its factorization.

243120443103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380470254 (or 380470251 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 243120443103 its reverse (301344021342), we get a palindrome (544464464445).

The spelling of 243120443103 in words is "two hundred forty-three billion, one hundred twenty million, four hundred forty-three thousand, one hundred three".