11036315021 has 2 divisors, whose sum is σ = 11036315022. Its totient is φ = 11036315020.

The previous prime is 11036314999. The next prime is 11036315071. The reversal of 11036315021 is 12051363011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10956855625 + 79459396 = 104675^2 + 8914^2 .

It is an emirp because it is prime and its reverse (12051363011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11036315021 - 2⁶ = 11036314957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11036315071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5518157510 + 5518157511.

It is an arithmetic number, because the mean of its divisors is an integer number (5518157511).

Almost surely, 2^11036315021 is an apocalyptic number.

It is an amenable number.

11036315021 is a deficient number, since it is larger than the sum of its proper divisors (1).

11036315021 is an equidigital number, since it uses as much as digits as its factorization.

11036315021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 540, while the sum is 23.

Adding to 11036315021 its reverse (12051363011), we get a palindrome (23087678032).

The spelling of 11036315021 in words is "eleven billion, thirty-six million, three hundred fifteen thousand, twenty-one".