243331423 has 8 divisors (see below), whose sum is σ = 258627200. Its totient is φ = 228284568.

The previous prime is 243331409. The next prime is 243331441. The reversal of 243331423 is 324133342.

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 243331423 - 2⁵ = 243331391 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 (243331463) 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, 60213 + ... + 64126.

It is an arithmetic number, because the mean of its divisors is an integer number (32328400).

Almost surely, 2^243331423 is an apocalyptic number.

243331423 is a deficient number, since it is larger than the sum of its proper divisors (15295777).

243331423 is a wasteful number, since it uses less digits than its factorization.

243331423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124461.

The product of its digits is 5184, while the sum is 25.

The square root of 243331423 is about 15599.0840436226. The cubic root of 243331423 is about 624.3087166456.

Adding to 243331423 its reverse (324133342), we get a palindrome (567464765).

It can be divided in two parts, 2433 and 31423, that added together give a square (33856 = 184²).

The spelling of 243331423 in words is "two hundred forty-three million, three hundred thirty-one thousand, four hundred twenty-three".