11050473821 has 2 divisors, whose sum is σ = 11050473822. Its totient is φ = 11050473820.

The previous prime is 11050473779. The next prime is 11050473857. The reversal of 11050473821 is 12837405011.

11050473821 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10621569721 + 428904100 = 103061^2 + 20710^2 .

It is a cyclic number.

It is not a de Polignac number, because 11050473821 - 2⁶ = 11050473757 is a prime.

It is a super-2 number, since 2×11050473821² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11050476821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5525236910 + 5525236911.

It is an arithmetic number, because the mean of its divisors is an integer number (5525236911).

Almost surely, 2^11050473821 is an apocalyptic number.

It is an amenable number.

11050473821 is a deficient number, since it is larger than the sum of its proper divisors (1).

11050473821 is an equidigital number, since it uses as much as digits as its factorization.

11050473821 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6720, while the sum is 32.

Adding to 11050473821 its reverse (12837405011), we get a palindrome (23887878832).

The spelling of 11050473821 in words is "eleven billion, fifty million, four hundred seventy-three thousand, eight hundred twenty-one".