11021573 has 2 divisors, whose sum is σ = 11021574. Its totient is φ = 11021572.

The previous prime is 11021533. The next prime is 11021581. The reversal of 11021573 is 37512011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5536609 + 5484964 = 2353^2 + 2342^2 .

It is a cyclic number.

It is not a de Polignac number, because 11021573 - 2¹⁶ = 10956037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11021533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5510786 + 5510787.

It is an arithmetic number, because the mean of its divisors is an integer number (5510787).

Almost surely, 2^11021573 is an apocalyptic number.

It is an amenable number.

11021573 is a deficient number, since it is larger than the sum of its proper divisors (1).

11021573 is an equidigital number, since it uses as much as digits as its factorization.

11021573 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 210, while the sum is 20.

The square root of 11021573 is about 3319.8754494710. The cubic root of 11021573 is about 222.5433017604.

Adding to 11021573 its reverse (37512011), we get a palindrome (48533584).

The spelling of 11021573 in words is "eleven million, twenty-one thousand, five hundred seventy-three".