12321030031321 has 16 divisors (see below), whose sum is σ = 13463528140800. Its totient is φ = 11182281149200.

The previous prime is 12321030031319. The next prime is 12321030031357. The reversal of 12321030031321 is 12313003012321.

It is a cyclic number.

It is not a de Polignac number, because 12321030031321 - 2¹ = 12321030031319 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12321030031292 and 12321030031301.

It is not an unprimeable number, because it can be changed into a prime (12321030031421) 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, 15942210 + ... + 16697188.

It is an arithmetic number, because the mean of its divisors is an integer number (841470508800).

Almost surely, 2^{12321030031321} is an apocalyptic number.

12321030031321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12321030031321 is a deficient number, since it is larger than the sum of its proper divisors (1142498109479).

12321030031321 is a wasteful number, since it uses less digits than its factorization.

12321030031321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 757460.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 12321030031321 its reverse (12313003012321), we get a palindrome (24634033043642).

The spelling of 12321030031321 in words is "twelve trillion, three hundred twenty-one billion, thirty million, thirty-one thousand, three hundred twenty-one".