323423431 has 4 divisors (see below), whose sum is σ = 323485864. Its totient is φ = 323361000.

The previous prime is 323423381. The next prime is 323423473. The reversal of 323423431 is 134324323.

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 323423431 - 2¹¹ = 323421383 is a prime.

It is a super-2 number, since 2×323423431² = 209205431439623522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 323423396 and 323423405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (323423131) 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, 22665 + ... + 34066.

It is an arithmetic number, because the mean of its divisors is an integer number (80871466).

Almost surely, 2^323423431 is an apocalyptic number.

323423431 is a deficient number, since it is larger than the sum of its proper divisors (62433).

323423431 is an equidigital number, since it uses as much as digits as its factorization.

323423431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62432.

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

The square root of 323423431 is about 17983.9770629302. The cubic root of 323423431 is about 686.4208920535.

Adding to 323423431 its reverse (134324323), we get a palindrome (457747754).

The spelling of 323423431 in words is "three hundred twenty-three million, four hundred twenty-three thousand, four hundred thirty-one".