11043323321 has 2 divisors, whose sum is σ = 11043323322. Its totient is φ = 11043323320.

The previous prime is 11043323311. The next prime is 11043323351. The reversal of 11043323321 is 12332334011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7507356025 + 3535967296 = 86645^2 + 59464^2 .

It is a cyclic number.

It is not a de Polignac number, because 11043323321 - 2³⁰ = 9969581497 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (11043323311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5521661660 + 5521661661.

It is an arithmetic number, because the mean of its divisors is an integer number (5521661661).

Almost surely, 2^11043323321 is an apocalyptic number.

It is an amenable number.

11043323321 is a deficient number, since it is larger than the sum of its proper divisors (1).

11043323321 is an equidigital number, since it uses as much as digits as its factorization.

11043323321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 11043323321 its reverse (12332334011), we get a palindrome (23375657332).

The spelling of 11043323321 in words is "eleven billion, forty-three million, three hundred twenty-three thousand, three hundred twenty-one".