321231320422 has 8 divisors (see below), whose sum is σ = 481909687056. Its totient is φ = 160594758072.

The previous prime is 321231320413. The next prime is 321231320437. The reversal of 321231320422 is 224023132123.

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

It is a super-2 number, since 2×321231320422² (a number of 24 digits) contains 22 as substring.

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, 10431853 + ... + 10462600.

It is an arithmetic number, because the mean of its divisors is an integer number (60238710882).

Almost surely, 2^321231320422 is an apocalyptic number.

321231320422 is a deficient number, since it is larger than the sum of its proper divisors (160678366634).

321231320422 is a wasteful number, since it uses less digits than its factorization.

321231320422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20902142.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 321231320422 its reverse (224023132123), we get a palindrome (545254452545).

The spelling of 321231320422 in words is "three hundred twenty-one billion, two hundred thirty-one million, three hundred twenty thousand, four hundred twenty-two".