11044321021 has 2 divisors, whose sum is σ = 11044321022. Its totient is φ = 11044321020.

The previous prime is 11044320977. The next prime is 11044321039. The reversal of 11044321021 is 12012344011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8609984100 + 2434336921 = 92790^2 + 49339^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11044321021 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11044321021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11044321061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5522160510 + 5522160511.

It is an arithmetic number, because the mean of its divisors is an integer number (5522160511).

Almost surely, 2^11044321021 is an apocalyptic number.

It is an amenable number.

11044321021 is a deficient number, since it is larger than the sum of its proper divisors (1).

11044321021 is an equidigital number, since it uses as much as digits as its factorization.

11044321021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 11044321021 its reverse (12012344011), we get a palindrome (23056665032).

The spelling of 11044321021 in words is "eleven billion, forty-four million, three hundred twenty-one thousand, twenty-one".