243341121 has 4 divisors (see below), whose sum is σ = 324454832. Its totient is φ = 162227412.

The previous prime is 243341107. The next prime is 243341141. The reversal of 243341121 is 121143342.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 243341121 - 2⁵ = 243341089 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (243341141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40556851 + ... + 40556856.

It is an arithmetic number, because the mean of its divisors is an integer number (81113708).

Almost surely, 2^243341121 is an apocalyptic number.

It is an amenable number.

243341121 is a deficient number, since it is larger than the sum of its proper divisors (81113711).

243341121 is an equidigital number, since it uses as much as digits as its factorization.

243341121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81113710.

The product of its digits is 576, while the sum is 21.

The square root of 243341121 is about 15599.3948921104. The cubic root of 243341121 is about 624.3170104991.

Adding to 243341121 its reverse (121143342), we get a palindrome (364484463).

The spelling of 243341121 in words is "two hundred forty-three million, three hundred forty-one thousand, one hundred twenty-one".