243243224403 has 16 divisors (see below), whose sum is σ = 329803929600. Its totient is φ = 159439512960.

The previous prime is 243243224387. The next prime is 243243224407. The reversal of 243243224403 is 304422342342.

It is not a de Polignac number, because 243243224403 - 2⁴ = 243243224387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (243243224407) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2090518 + ... + 2203803.

It is an arithmetic number, because the mean of its divisors is an integer number (20612745600).

Almost surely, 2^243243224403 is an apocalyptic number.

243243224403 is a deficient number, since it is larger than the sum of its proper divisors (86560705197).

243243224403 is a wasteful number, since it uses less digits than its factorization.

243243224403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4294642.

The product of its (nonzero) digits is 110592, while the sum is 33.

Adding to 243243224403 its reverse (304422342342), we get a palindrome (547665566745).

The spelling of 243243224403 in words is "two hundred forty-three billion, two hundred forty-three million, two hundred twenty-four thousand, four hundred three".