13231100131321 has 2 divisors, whose sum is σ = 13231100131322. Its totient is φ = 13231100131320.

The previous prime is 13231100131237. The next prime is 13231100131349. The reversal of 13231100131321 is 12313100113231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8946051090025 + 4285049041296 = 2990995^2 + 2070036^2 .

It is a cyclic number.

It is not a de Polignac number, because 13231100131321 - 2⁴¹ = 11032076875769 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13231100131292 and 13231100131301.

It is not a weakly prime, because it can be changed into another prime (13231100131421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6615550065660 + 6615550065661.

It is an arithmetic number, because the mean of its divisors is an integer number (6615550065661).

Almost surely, 2^{13231100131321} is an apocalyptic number.

It is an amenable number.

13231100131321 is a deficient number, since it is larger than the sum of its proper divisors (1).

13231100131321 is an equidigital number, since it uses as much as digits as its factorization.

13231100131321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 13231100131321 its reverse (12313100113231), we get a palindrome (25544200244552).

The spelling of 13231100131321 in words is "thirteen trillion, two hundred thirty-one billion, one hundred million, one hundred thirty-one thousand, three hundred twenty-one".