321111132020321 has 8 divisors (see below), whose sum is σ = 327284588945664. Its totient is φ = 314941925329200.

The previous prime is 321111132020309. The next prime is 321111132020347. The reversal of 321111132020321 is 123020231111123.

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 321111132020321 - 2¹⁰ = 321111132019297 is a prime.

It is a super-2 number, since 2×321111132020321² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321111132020381) 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, 1062406001 + ... + 1062708206.

It is an arithmetic number, because the mean of its divisors is an integer number (40910573618208).

Almost surely, 2^{321111132020321} is an apocalyptic number.

It is an amenable number.

321111132020321 is a deficient number, since it is larger than the sum of its proper divisors (6173456925343).

321111132020321 is a wasteful number, since it uses less digits than its factorization.

321111132020321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2125117111.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 321111132020321 its reverse (123020231111123), we get a palindrome (444131363131444).

The spelling of 321111132020321 in words is "three hundred twenty-one trillion, one hundred eleven billion, one hundred thirty-two million, twenty thousand, three hundred twenty-one".