243240502303 has 8 divisors (see below), whose sum is σ = 245095879248. Its totient is φ = 241386283584.

The previous prime is 243240502291. The next prime is 243240502363. The reversal of 243240502303 is 303205042342.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-243240502303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243240502363) 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, 134425 + ... + 710317.

It is an arithmetic number, because the mean of its divisors is an integer number (30636984906).

Almost surely, 2^243240502303 is an apocalyptic number.

243240502303 is a deficient number, since it is larger than the sum of its proper divisors (1855376945).

243240502303 is a wasteful number, since it uses less digits than its factorization.

243240502303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579113.

The product of its (nonzero) digits is 17280, while the sum is 28.

Adding to 243240502303 its reverse (303205042342), we get a palindrome (546445544645).

The spelling of 243240502303 in words is "two hundred forty-three billion, two hundred forty million, five hundred two thousand, three hundred three".