431321323 has 8 divisors (see below), whose sum is σ = 455133600. Its totient is φ = 407930688.

The previous prime is 431321311. The next prime is 431321327. The reversal of 431321323 is 323123134.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-431321323 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 431321294 and 431321303.

It is not an unprimeable number, because it can be changed into a prime (431321327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103308 + ... + 107401.

It is an arithmetic number, because the mean of its divisors is an integer number (56891700).

Almost surely, 2^431321323 is an apocalyptic number.

431321323 is a deficient number, since it is larger than the sum of its proper divisors (23812277).

431321323 is a wasteful number, since it uses less digits than its factorization.

431321323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210821.

The product of its digits is 1296, while the sum is 22.

The square root of 431321323 is about 20768.2768423382. The cubic root of 431321323 is about 755.5565523399.

Adding to 431321323 its reverse (323123134), we get a palindrome (754444457).

The spelling of 431321323 in words is "four hundred thirty-one million, three hundred twenty-one thousand, three hundred twenty-three".