11021331473 has 2 divisors, whose sum is σ = 11021331474. Its totient is φ = 11021331472.

The previous prime is 11021331449. The next prime is 11021331487. The reversal of 11021331473 is 37413312011.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7501638544 + 3519692929 = 86612^2 + 59327^2 .

It is a cyclic number.

It is not a de Polignac number, because 11021331473 - 2³⁰ = 9947589649 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 (11021331403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5510665736 + 5510665737.

It is an arithmetic number, because the mean of its divisors is an integer number (5510665737).

Almost surely, 2^11021331473 is an apocalyptic number.

It is an amenable number.

11021331473 is a deficient number, since it is larger than the sum of its proper divisors (1).

11021331473 is an equidigital number, since it uses as much as digits as its factorization.

11021331473 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 26.

Adding to 11021331473 its reverse (37413312011), we get a palindrome (48434643484).

The spelling of 11021331473 in words is "eleven billion, twenty-one million, three hundred thirty-one thousand, four hundred seventy-three".