243300023 has 4 divisors (see below), whose sum is σ = 243706800. Its totient is φ = 242893248.

The previous prime is 243300017. The next prime is 243300037. The reversal of 243300023 is 320003342.

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 243300023 - 2⁴ = 243300007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 243299974 and 243300010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243300223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 202490 + ... + 203687.

It is an arithmetic number, because the mean of its divisors is an integer number (60926700).

Almost surely, 2^243300023 is an apocalyptic number.

243300023 is a deficient number, since it is larger than the sum of its proper divisors (406777).

243300023 is an equidigital number, since it uses as much as digits as its factorization.

243300023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406776.

The product of its (nonzero) digits is 432, while the sum is 17.

The square root of 243300023 is about 15598.0775417998. The cubic root of 243300023 is about 624.2818614526.

Adding to 243300023 its reverse (320003342), we get a palindrome (563303365).

The spelling of 243300023 in words is "two hundred forty-three million, three hundred thousand, twenty-three".