321311143230305 has 24 divisors (see below), whose sum is σ = 406973311641792. Its totient is φ = 243496964556576.

The previous prime is 321311143230241. The next prime is 321311143230313. The reversal of 321311143230305 is 503032341113123.

It is not a de Polignac number, because 321311143230305 - 2⁶ = 321311143230241 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10650434 + ... + 27496436.

It is an arithmetic number, because the mean of its divisors is an integer number (16957221318408).

Almost surely, 2^{321311143230305} is an apocalyptic number.

It is an amenable number.

321311143230305 is a deficient number, since it is larger than the sum of its proper divisors (85662168411487).

321311143230305 is a wasteful number, since it uses less digits than its factorization.

321311143230305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16856613 (or 16856594 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 32.

Adding to 321311143230305 its reverse (503032341113123), we get a palindrome (824343484343428).

The spelling of 321311143230305 in words is "three hundred twenty-one trillion, three hundred eleven billion, one hundred forty-three million, two hundred thirty thousand, three hundred five".