321131030321 has 8 divisors (see below), whose sum is σ = 328121685600. Its totient is φ = 314191967040.

The previous prime is 321131030317. The next prime is 321131030327. The reversal of 321131030321 is 123030131123.

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

It is a cyclic number.

It is not a de Polignac number, because 321131030321 - 2² = 321131030317 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 321131030293 and 321131030302.

It is not an unprimeable number, because it can be changed into a prime (321131030327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12885416 + ... + 12910313.

It is an arithmetic number, because the mean of its divisors is an integer number (41015210700).

Almost surely, 2^321131030321 is an apocalyptic number.

It is an amenable number.

321131030321 is a deficient number, since it is larger than the sum of its proper divisors (6990655279).

321131030321 is a wasteful number, since it uses less digits than its factorization.

321131030321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25795999.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 321131030321 its reverse (123030131123), we get a palindrome (444161161444).

The spelling of 321131030321 in words is "three hundred twenty-one billion, one hundred thirty-one million, thirty thousand, three hundred twenty-one".