11420324209 has 12 divisors (see below), whose sum is σ = 14066330724. Its totient is φ = 9213033984.

The previous prime is 11420324101. The next prime is 11420324221. The reversal of 11420324209 is 90242302411.

It can be written as a sum of positive squares in 2 ways, for example, as 4061257984 + 7359066225 = 63728^2 + 85785^2 .

It is not a de Polignac number, because 11420324209 - 2¹⁹ = 11419799921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11420324239) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6854104 + ... + 6855769.

It is an arithmetic number, because the mean of its divisors is an integer number (1172194227).

Almost surely, 2^11420324209 is an apocalyptic number.

It is an amenable number.

11420324209 is a deficient number, since it is larger than the sum of its proper divisors (2646006515).

11420324209 is a wasteful number, since it uses less digits than its factorization.

11420324209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13709904 (or 13709897 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The spelling of 11420324209 in words is "eleven billion, four hundred twenty million, three hundred twenty-four thousand, two hundred nine".