323143131 has 4 divisors (see below), whose sum is σ = 430857512. Its totient is φ = 215428752.

The previous prime is 323143111. The next prime is 323143193. The reversal of 323143131 is 131341323.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 323143131 - 2⁷ = 323143003 is a prime.

It is a super-2 number, since 2×323143131² = 208842966224966322, 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 = 323143098 and 323143107.

It is not an unprimeable number, because it can be changed into a prime (323143111) 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, 53857186 + ... + 53857191.

It is an arithmetic number, because the mean of its divisors is an integer number (107714378).

Almost surely, 2^323143131 is an apocalyptic number.

323143131 is a deficient number, since it is larger than the sum of its proper divisors (107714381).

323143131 is a wasteful number, since it uses less digits than its factorization.

323143131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107714380.

The product of its digits is 648, while the sum is 21.

The square root of 323143131 is about 17976.1823255106. The cubic root of 323143131 is about 686.2225355879. Note that the first 3 decimals are identical.

Adding to 323143131 its reverse (131341323), we get a palindrome (454484454).

The spelling of 323143131 in words is "three hundred twenty-three million, one hundred forty-three thousand, one hundred thirty-one".