323404131 has 8 divisors (see below), whose sum is σ = 433249984. Its totient is φ = 214580520.

The previous prime is 323404129. The next prime is 323404153. The reversal of 323404131 is 131404323.

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

It is not a de Polignac number, because 323404131 - 2¹ = 323404129 is a prime.

It is a super-2 number, since 2×323404131² = 209180463895730322, 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 = 323404098 and 323404107.

It is not an unprimeable number, because it can be changed into a prime (323404181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 254821 + ... + 256086.

It is an arithmetic number, because the mean of its divisors is an integer number (54156248).

Almost surely, 2^323404131 is an apocalyptic number.

323404131 is a deficient number, since it is larger than the sum of its proper divisors (109845853).

323404131 is a wasteful number, since it uses less digits than its factorization.

323404131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511121.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 323404131 is about 17983.4404661622. The cubic root of 323404131 is about 686.4072379338.

Adding to 323404131 its reverse (131404323), we get a palindrome (454808454).

The spelling of 323404131 in words is "three hundred twenty-three million, four hundred four thousand, one hundred thirty-one".