11324321321 has 2 divisors, whose sum is σ = 11324321322. Its totient is φ = 11324321320.

The previous prime is 11324321279. The next prime is 11324321387. The reversal of 11324321321 is 12312342311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10970467600 + 353853721 = 104740^2 + 18811^2 .

It is a cyclic number.

It is not a de Polignac number, because 11324321321 - 2²² = 11320127017 is a prime.

It is not a weakly prime, because it can be changed into another prime (11324327321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5662160660 + 5662160661.

It is an arithmetic number, because the mean of its divisors is an integer number (5662160661).

Almost surely, 2^11324321321 is an apocalyptic number.

It is an amenable number.

11324321321 is a deficient number, since it is larger than the sum of its proper divisors (1).

11324321321 is an equidigital number, since it uses as much as digits as its factorization.

11324321321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864, while the sum is 23.

Adding to 11324321321 its reverse (12312342311), we get a palindrome (23636663632).

The spelling of 11324321321 in words is "eleven billion, three hundred twenty-four million, three hundred twenty-one thousand, three hundred twenty-one".