243241025305 has 16 divisors (see below), whose sum is σ = 299802956544. Its totient is φ = 189317874240.

The previous prime is 243241025281. The next prime is 243241025311. The reversal of 243241025305 is 503520142342.

It is not a de Polignac number, because 243241025305 - 2²⁵ = 243207470873 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2511204 + ... + 2606266.

It is an arithmetic number, because the mean of its divisors is an integer number (18737684784).

Almost surely, 2^243241025305 is an apocalyptic number.

It is an amenable number.

243241025305 is a deficient number, since it is larger than the sum of its proper divisors (56561931239).

243241025305 is a wasteful number, since it uses less digits than its factorization.

243241025305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108936.

The product of its (nonzero) digits is 28800, while the sum is 31.

Adding to 243241025305 its reverse (503520142342), we get a palindrome (746761167647).

The spelling of 243241025305 in words is "two hundred forty-three billion, two hundred forty-one million, twenty-five thousand, three hundred five".