323143523 has 4 divisors (see below), whose sum is σ = 325201920. Its totient is φ = 321085128.

The previous prime is 323143511. The next prime is 323143553. The reversal of 323143523 is 325341323.

It is a happy number.

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 323143523 - 2²⁰ = 322094947 is a prime.

It is a super-3 number, since 3×323143523³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 323143492 and 323143501.

It is not an unprimeable number, because it can be changed into a prime (323143553) 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, 1028963 + ... + 1029276.

It is an arithmetic number, because the mean of its divisors is an integer number (81300480).

Almost surely, 2^323143523 is an apocalyptic number.

323143523 is a deficient number, since it is larger than the sum of its proper divisors (2058397).

323143523 is a wasteful number, since it uses less digits than its factorization.

323143523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2058396.

The product of its digits is 6480, while the sum is 26.

The square root of 323143523 is about 17976.1932288235. The cubic root of 323143523 is about 686.2228130698. Note that the first 3 decimals are identical.

Adding to 323143523 its reverse (325341323), we get a palindrome (648484846).

The spelling of 323143523 in words is "three hundred twenty-three million, one hundred forty-three thousand, five hundred twenty-three".