243200023 has 4 divisors (see below), whose sum is σ = 265309128. Its totient is φ = 221090920.

The previous prime is 243199973. The next prime is 243200039. The reversal of 243200023 is 320002342.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 243200023 - 2¹³ = 243191831 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 (243200423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11054536 + ... + 11054557.

It is an arithmetic number, because the mean of its divisors is an integer number (66327282).

Almost surely, 2^243200023 is an apocalyptic number.

243200023 is a deficient number, since it is larger than the sum of its proper divisors (22109105).

243200023 is a wasteful number, since it uses less digits than its factorization.

243200023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22109104.

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 243200023 is about 15594.8716891163. The cubic root of 243200023 is about 624.1963199604.

Adding to 243200023 its reverse (320002342), we get a palindrome (563202365).

The spelling of 243200023 in words is "two hundred forty-three million, two hundred thousand, twenty-three".