11821093 has 4 divisors (see below), whose sum is σ = 12140620. Its totient is φ = 11501568.

The previous prime is 11821081. The next prime is 11821123. The reversal of 11821093 is 39012811.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9443329 + 2377764 = 3073^2 + 1542^2 .

It is a cyclic number.

It is not a de Polignac number, because 11821093 - 2⁹ = 11820581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11822093) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 159708 + ... + 159781.

It is an arithmetic number, because the mean of its divisors is an integer number (3035155).

Almost surely, 2^11821093 is an apocalyptic number.

It is an amenable number.

11821093 is a deficient number, since it is larger than the sum of its proper divisors (319527).

11821093 is an equidigital number, since it uses as much as digits as its factorization.

11821093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319526.

The product of its (nonzero) digits is 432, while the sum is 25.

The square root of 11821093 is about 3438.1816415076. The cubic root of 11821093 is about 227.7993836513.

The spelling of 11821093 in words is "eleven million, eight hundred twenty-one thousand, ninety-three".