423243313 has 8 divisors (see below), whose sum is σ = 438114600. Its totient is φ = 408390528.

The previous prime is 423243241. The next prime is 423243343. The reversal of 423243313 is 313342324.

It can be written as a sum of positive squares in 4 ways, for example, as 92294449 + 330948864 = 9607^2 + 18192^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-423243313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (423243343) 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, 55245 + ... + 62437.

It is an arithmetic number, because the mean of its divisors is an integer number (54764325).

Almost surely, 2^423243313 is an apocalyptic number.

It is an amenable number.

423243313 is a deficient number, since it is larger than the sum of its proper divisors (14871287).

423243313 is a wasteful number, since it uses less digits than its factorization.

423243313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9251.

The product of its digits is 5184, while the sum is 25.

The square root of 423243313 is about 20572.8780922845. The cubic root of 423243313 is about 750.8099770827.

Adding to 423243313 its reverse (313342324), we get a palindrome (736585637).

The spelling of 423243313 in words is "four hundred twenty-three million, two hundred forty-three thousand, three hundred thirteen".