12131132020321 has 2 divisors, whose sum is σ = 12131132020322. Its totient is φ = 12131132020320.

The previous prime is 12131132020313. The next prime is 12131132020363. The reversal of 12131132020321 is 12302023113121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6724483971921 + 5406648048400 = 2593161^2 + 2325220^2 .

It is a cyclic number.

It is not a de Polignac number, because 12131132020321 - 2³ = 12131132020313 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12131132020292 and 12131132020301.

It is not a weakly prime, because it can be changed into another prime (12131135020321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6065566010160 + 6065566010161.

It is an arithmetic number, because the mean of its divisors is an integer number (6065566010161).

Almost surely, 2^{12131132020321} is an apocalyptic number.

It is an amenable number.

12131132020321 is a deficient number, since it is larger than the sum of its proper divisors (1).

12131132020321 is an equidigital number, since it uses as much as digits as its factorization.

12131132020321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 12131132020321 its reverse (12302023113121), we get a palindrome (24433155133442).

The spelling of 12131132020321 in words is "twelve trillion, one hundred thirty-one billion, one hundred thirty-two million, twenty thousand, three hundred twenty-one".