243231423 has 8 divisors (see below), whose sum is σ = 324409728. Its totient is φ = 162103704.

The previous prime is 243231413. The next prime is 243231449. The reversal of 243231423 is 324132342.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 243231423 - 2⁸ = 243231167 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 243231393 and 243231402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243231413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 540 + ... + 22062.

It is an arithmetic number, because the mean of its divisors is an integer number (40551216).

Almost surely, 2^243231423 is an apocalyptic number.

243231423 is a deficient number, since it is larger than the sum of its proper divisors (81178305).

243231423 is a wasteful number, since it uses less digits than its factorization.

243231423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25293.

The product of its digits is 3456, while the sum is 24.

The square root of 243231423 is about 15595.8783978332. The cubic root of 243231423 is about 624.2231825140.

Adding to 243231423 its reverse (324132342), we get a palindrome (567363765).

The spelling of 243231423 in words is "two hundred forty-three million, two hundred thirty-one thousand, four hundred twenty-three".