243102440243 has 8 divisors (see below), whose sum is σ = 270830305200. Its totient is φ = 216664243488.

The previous prime is 243102440239. The next prime is 243102440281. The reversal of 243102440243 is 342044201342.

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 243102440243 - 2² = 243102440239 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is not an unprimeable number, because it can be changed into a prime (243102440233) 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, 322416653 + ... + 322417406.

It is an arithmetic number, because the mean of its divisors is an integer number (33853788150).

Almost surely, 2^243102440243 is an apocalyptic number.

243102440243 is a deficient number, since it is larger than the sum of its proper divisors (27727864957).

243102440243 is a wasteful number, since it uses less digits than its factorization.

243102440243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644834101.

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 243102440243 its reverse (342044201342), we get a palindrome (585146641585).

The spelling of 243102440243 in words is "two hundred forty-three billion, one hundred two million, four hundred forty thousand, two hundred forty-three".