321013112021321 has 16 divisors (see below), whose sum is σ = 332276628972288. Its totient is φ = 309913966771200.

The previous prime is 321013112021269. The next prime is 321013112021359. The reversal of 321013112021321 is 123120211310123.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 321013112021321 - 2⁶ = 321013112021257 is a prime.

It is a super-2 number, since 2×321013112021321² (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 (321013112029321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24872756 + ... + 35506058.

It is an arithmetic number, because the mean of its divisors is an integer number (20767289310768).

Almost surely, 2^{321013112021321} is an apocalyptic number.

It is an amenable number.

321013112021321 is a deficient number, since it is larger than the sum of its proper divisors (11263516950967).

321013112021321 is a wasteful number, since it uses less digits than its factorization.

321013112021321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10641032.

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

Adding to 321013112021321 its reverse (123120211310123), we get a palindrome (444133323331444).

The spelling of 321013112021321 in words is "three hundred twenty-one trillion, thirteen billion, one hundred twelve million, twenty-one thousand, three hundred twenty-one".