321113210321 has 8 divisors (see below), whose sum is σ = 335199606720. Its totient is φ = 307037226672.

The previous prime is 321113210293. The next prime is 321113210381. The reversal of 321113210321 is 123012311123.

It is a happy number.

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 321113210321 - 2²² = 321109016017 is a prime.

It is a super-3 number, since 3×321113210321³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 321113210293 and 321113210302.

It is not an unprimeable number, because it can be changed into a prime (321113210381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2540126 + ... + 2663543.

It is an arithmetic number, because the mean of its divisors is an integer number (41899950840).

Almost surely, 2^321113210321 is an apocalyptic number.

It is an amenable number.

321113210321 is a deficient number, since it is larger than the sum of its proper divisors (14086396399).

321113210321 is a wasteful number, since it uses less digits than its factorization.

321113210321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5206375.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 321113210321 its reverse (123012311123), we get a palindrome (444125521444).

The spelling of 321113210321 in words is "three hundred twenty-one billion, one hundred thirteen million, two hundred ten thousand, three hundred twenty-one".