321231422 has 8 divisors (see below), whose sum is σ = 510191136. Its totient is φ = 151167712.

The previous prime is 321231413. The next prime is 321231437. The reversal of 321231422 is 224132123.

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 = 321231394 and 321231403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4723958 + ... + 4724025.

It is an arithmetic number, because the mean of its divisors is an integer number (63773892).

Almost surely, 2^321231422 is an apocalyptic number.

321231422 is a deficient number, since it is larger than the sum of its proper divisors (188959714).

321231422 is a wasteful number, since it uses less digits than its factorization.

321231422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9448002.

The product of its digits is 576, while the sum is 20.

The square root of 321231422 is about 17922.9300617951. The cubic root of 321231422 is about 684.8666314666.

Adding to 321231422 its reverse (224132123), we get a palindrome (545363545).

The spelling of 321231422 in words is "three hundred twenty-one million, two hundred thirty-one thousand, four hundred twenty-two".