11421814009 has 2 divisors, whose sum is σ = 11421814010. Its totient is φ = 11421814008.

The previous prime is 11421813971. The next prime is 11421814037. The reversal of 11421814009 is 90041812411.

11421814009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10994151609 + 427662400 = 104853^2 + 20680^2 .

It is a cyclic number.

It is not a de Polignac number, because 11421814009 - 2¹⁹ = 11421289721 is a prime.

It is not a weakly prime, because it can be changed into another prime (11421814039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5710907004 + 5710907005.

It is an arithmetic number, because the mean of its divisors is an integer number (5710907005).

Almost surely, 2^11421814009 is an apocalyptic number.

It is an amenable number.

11421814009 is a deficient number, since it is larger than the sum of its proper divisors (1).

11421814009 is an equidigital number, since it uses as much as digits as its factorization.

11421814009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 31.

The spelling of 11421814009 in words is "eleven billion, four hundred twenty-one million, eight hundred fourteen thousand, nine".