11330021 has 2 divisors, whose sum is σ = 11330022. Its totient is φ = 11330020.

The previous prime is 11330009. The next prime is 11330047. The reversal of 11330021 is 12003311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8473921 + 2856100 = 2911^2 + 1690^2 .

It is a cyclic number.

It is not a de Polignac number, because 11330021 - 2²² = 7135717 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 11329984 and 11330011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11330071) 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, 5665010 + 5665011.

It is an arithmetic number, because the mean of its divisors is an integer number (5665011).

Almost surely, 2^11330021 is an apocalyptic number.

It is an amenable number.

11330021 is a deficient number, since it is larger than the sum of its proper divisors (1).

11330021 is an equidigital number, since it uses as much as digits as its factorization.

11330021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 11330021 is about 3366.0096553635. The cubic root of 11330021 is about 224.6002515204.

Adding to 11330021 its reverse (12003311), we get a palindrome (23333332).

The spelling of 11330021 in words is "eleven million, three hundred thirty thousand, twenty-one".