243430023 has 8 divisors (see below), whose sum is σ = 324683136. Its totient is φ = 162231800.

The previous prime is 243429971. The next prime is 243430037. The reversal of 243430023 is 320034342.

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 243430023 - 2⁶ = 243429959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243430043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1923 + ... + 22148.

It is an arithmetic number, because the mean of its divisors is an integer number (40585392).

Almost surely, 2^243430023 is an apocalyptic number.

243430023 is a deficient number, since it is larger than the sum of its proper divisors (81253113).

243430023 is a wasteful number, since it uses less digits than its factorization.

243430023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27445.

The product of its (nonzero) digits is 1728, while the sum is 21.

The square root of 243430023 is about 15602.2441655039. The cubic root of 243430023 is about 624.3930303581.

Adding to 243430023 its reverse (320034342), we get a palindrome (563464365).

The spelling of 243430023 in words is "two hundred forty-three million, four hundred thirty thousand, twenty-three".