323430143 has 4 divisors (see below), whose sum is σ = 323466168. Its totient is φ = 323394120.

The previous prime is 323430139. The next prime is 323430203. The reversal of 323430143 is 341034323.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 341034323 = 7 ⋅48719189.

It is a cyclic number.

It is not a de Polignac number, because 323430143 - 2² = 323430139 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (323430043) 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, 7505 + ... + 26517.

It is an arithmetic number, because the mean of its divisors is an integer number (80866542).

Almost surely, 2^323430143 is an apocalyptic number.

323430143 is a deficient number, since it is larger than the sum of its proper divisors (36025).

323430143 is a wasteful number, since it uses less digits than its factorization.

323430143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36024.

The product of its (nonzero) digits is 2592, while the sum is 23.

The square root of 323430143 is about 17984.1636725203. The cubic root of 323430143 is about 686.4256404470.

Adding to 323430143 its reverse (341034323), we get a palindrome (664464466).

The spelling of 323430143 in words is "three hundred twenty-three million, four hundred thirty thousand, one hundred forty-three".