243230023 has 4 divisors (see below), whose sum is σ = 243265968. Its totient is φ = 243194080.

The previous prime is 243230017. The next prime is 243230051. The reversal of 243230023 is 320032342.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-243230023 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 (243230423) 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, 4411 + ... + 22492.

It is an arithmetic number, because the mean of its divisors is an integer number (60816492).

Almost surely, 2^243230023 is an apocalyptic number.

243230023 is a deficient number, since it is larger than the sum of its proper divisors (35945).

243230023 is an equidigital number, since it uses as much as digits as its factorization.

243230023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35944.

The product of its (nonzero) digits is 864, while the sum is 19.

The square root of 243230023 is about 15595.8335141152. The cubic root of 243230023 is about 624.2219848698.

Adding to 243230023 its reverse (320032342), we get a palindrome (563262365).

The spelling of 243230023 in words is "two hundred forty-three million, two hundred thirty thousand, twenty-three".