231223343 has 4 divisors (see below), whose sum is σ = 249009768. Its totient is φ = 213436920.

The previous prime is 231223297. The next prime is 231223373. The reversal of 231223343 is 343322132.

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 231223343 - 2¹⁰ = 231222319 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 (231223373) 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 3 ways as a sum of consecutive naturals, for example, 8893193 + ... + 8893218.

It is an arithmetic number, because the mean of its divisors is an integer number (62252442).

Almost surely, 2^231223343 is an apocalyptic number.

231223343 is a deficient number, since it is larger than the sum of its proper divisors (17786425).

231223343 is a wasteful number, since it uses less digits than its factorization.

231223343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17786424.

The product of its digits is 2592, while the sum is 23.

The square root of 231223343 is about 15206.0298237245. The cubic root of 231223343 is about 613.7769272092.

Adding to 231223343 its reverse (343322132), we get a palindrome (574545475).

The spelling of 231223343 in words is "two hundred thirty-one million, two hundred twenty-three thousand, three hundred forty-three".