243041121 has 8 divisors (see below), whose sum is σ = 360060960. Its totient is φ = 162027396.

The previous prime is 243041081. The next prime is 243041167. The reversal of 243041121 is 121140342.

243041121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 243041121 - 2¹⁷ = 242910049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 243041094 and 243041103.

It is not an unprimeable number, because it can be changed into a prime (243041171) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4500735 + ... + 4500788.

It is an arithmetic number, because the mean of its divisors is an integer number (45007620).

Almost surely, 2^243041121 is an apocalyptic number.

It is an amenable number.

243041121 is a deficient number, since it is larger than the sum of its proper divisors (117019839).

243041121 is an equidigital number, since it uses as much as digits as its factorization.

243041121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9001532 (or 9001526 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 243041121 is about 15589.7761690154. The cubic root of 243041121 is about 624.0603445709.

Adding to 243041121 its reverse (121140342), we get a palindrome (364181463).

It can be divided in two parts, 24304 and 1121, that added together give a triangular number (25425 = T₂₂₅).

The spelling of 243041121 in words is "two hundred forty-three million, forty-one thousand, one hundred twenty-one".