231022343 has 4 divisors (see below), whose sum is σ = 235937760. Its totient is φ = 226106928.

The previous prime is 231022321. The next prime is 231022361. The reversal of 231022343 is 343220132.

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 231022343 - 2⁶ = 231022279 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 (231022303) 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, 2457638 + ... + 2457731.

It is an arithmetic number, because the mean of its divisors is an integer number (58984440).

Almost surely, 2^231022343 is an apocalyptic number.

231022343 is a deficient number, since it is larger than the sum of its proper divisors (4915417).

231022343 is an equidigital number, since it uses as much as digits as its factorization.

231022343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4915416.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 231022343 is about 15199.4191665340. The cubic root of 231022343 is about 613.5990257253.

Adding to 231022343 its reverse (343220132), we get a palindrome (574242475).

The spelling of 231022343 in words is "two hundred thirty-one million, twenty-two thousand, three hundred forty-three".