243204331241 has 8 divisors (see below), whose sum is σ = 243590170824. Its totient is φ = 242818784640.

The previous prime is 243204331187. The next prime is 243204331243. The reversal of 243204331241 is 142133402342.

It can be written as a sum of positive squares in 4 ways, for example, as 23285539216 + 219918792025 = 152596^2 + 468955^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 243204331241 - 2³⁴ = 226024462057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243204331243) 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, 1619111 + ... + 1762931.

It is an arithmetic number, because the mean of its divisors is an integer number (30448771353).

Almost surely, 2^243204331241 is an apocalyptic number.

It is an amenable number.

243204331241 is a deficient number, since it is larger than the sum of its proper divisors (385839583).

243204331241 is a wasteful number, since it uses less digits than its factorization.

243204331241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146491.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 243204331241 its reverse (142133402342), we get a palindrome (385337733583).

The spelling of 243204331241 in words is "two hundred forty-three billion, two hundred four million, three hundred thirty-one thousand, two hundred forty-one".