320423343 has 4 divisors (see below), whose sum is σ = 427231128. Its totient is φ = 213615560.

The previous prime is 320423339. The next prime is 320423381. The reversal of 320423343 is 343324023.

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 320423343 - 2² = 320423339 is a prime.

It is a super-2 number, since 2×320423343² = 205342237478591298, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320423443) 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, 53403888 + ... + 53403893.

It is an arithmetic number, because the mean of its divisors is an integer number (106807782).

Almost surely, 2^320423343 is an apocalyptic number.

320423343 is a deficient number, since it is larger than the sum of its proper divisors (106807785).

320423343 is a wasteful number, since it uses less digits than its factorization.

320423343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106807784.

The product of its (nonzero) digits is 5184, while the sum is 24.

The square root of 320423343 is about 17900.3727056171. The cubic root of 320423343 is about 684.2918734006.

Adding to 320423343 its reverse (343324023), we get a palindrome (663747366).

The spelling of 320423343 in words is "three hundred twenty million, four hundred twenty-three thousand, three hundred forty-three".