23031343 has 4 divisors (see below), whose sum is σ = 23408968. Its totient is φ = 22653720.

The previous prime is 23031329. The next prime is 23031367. The reversal of 23031343 is 34313032.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23031343 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 23031343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23031313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 188721 + ... + 188842.

It is an arithmetic number, because the mean of its divisors is an integer number (5852242).

Almost surely, 2^23031343 is an apocalyptic number.

23031343 is a deficient number, since it is larger than the sum of its proper divisors (377625).

23031343 is an equidigital number, since it uses as much as digits as its factorization.

23031343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377624.

The product of its (nonzero) digits is 648, while the sum is 19.

The square root of 23031343 is about 4799.0981444434. The cubic root of 23031343 is about 284.5158209764.

Adding to 23031343 its reverse (34313032), we get a palindrome (57344375).

The spelling of 23031343 in words is "twenty-three million, thirty-one thousand, three hundred forty-three".