11330821 has 8 divisors (see below), whose sum is σ = 11962080. Its totient is φ = 10703088.

The previous prime is 11330797. The next prime is 11330827. The reversal of 11330821 is 12803311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11330821 - 2¹⁹ = 10806533 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11330827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8235 + ... + 9511.

It is an arithmetic number, because the mean of its divisors is an integer number (1495260).

Almost surely, 2^11330821 is an apocalyptic number.

It is an amenable number.

11330821 is a deficient number, since it is larger than the sum of its proper divisors (631259).

11330821 is a wasteful number, since it uses less digits than its factorization.

11330821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1763.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 11330821 is about 3366.1284883379. The cubic root of 11330821 is about 224.6055376528.

The spelling of 11330821 in words is "eleven million, three hundred thirty thousand, eight hundred twenty-one".