321431230 has 8 divisors (see below), whose sum is σ = 578576232. Its totient is φ = 128572488.

The previous prime is 321431197. The next prime is 321431237. The reversal of 321431230 is 32134123.

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

It is a junction number, because it is equal to n+sod(n) for n = 321431198 and 321431207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321431237) 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, 16071552 + ... + 16071571.

It is an arithmetic number, because the mean of its divisors is an integer number (72322029).

Almost surely, 2^321431230 is an apocalyptic number.

321431230 is a deficient number, since it is larger than the sum of its proper divisors (257145002).

321431230 is a wasteful number, since it uses less digits than its factorization.

321431230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32143130.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 321431230 is about 17928.5032838773. The cubic root of 321431230 is about 685.0085991781.

Adding to 321431230 its reverse (32134123), we get a palindrome (353565353).

The spelling of 321431230 in words is "three hundred twenty-one million, four hundred thirty-one thousand, two hundred thirty".