231111343 has 8 divisors (see below), whose sum is σ = 232960688. Its totient is φ = 229267584.

The previous prime is 231111281. The next prime is 231111347. The reversal of 231111343 is 343111132.

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 231111343 - 2¹⁷ = 230980271 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 231111343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231111347) 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, 122455 + ... + 124327.

It is an arithmetic number, because the mean of its divisors is an integer number (29120086).

Almost surely, 2^231111343 is an apocalyptic number.

231111343 is a deficient number, since it is larger than the sum of its proper divisors (1849345).

231111343 is a wasteful number, since it uses less digits than its factorization.

231111343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2793.

The product of its digits is 216, while the sum is 19.

The square root of 231111343 is about 15202.3466280703. The cubic root of 231111343 is about 613.6778107486.

Adding to 231111343 its reverse (343111132), we get a palindrome (574222475).

The spelling of 231111343 in words is "two hundred thirty-one million, one hundred eleven thousand, three hundred forty-three".