11143041409 has 2 divisors, whose sum is σ = 11143041410. Its totient is φ = 11143041408.

The previous prime is 11143041401. The next prime is 11143041451. The reversal of 11143041409 is 90414034111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9781210000 + 1361831409 = 98900^2 + 36903^2 .

It is a cyclic number.

It is not a de Polignac number, because 11143041409 - 2³ = 11143041401 is a prime.

It is not a weakly prime, because it can be changed into another prime (11143041401) 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, 5571520704 + 5571520705.

It is an arithmetic number, because the mean of its divisors is an integer number (5571520705).

Almost surely, 2^11143041409 is an apocalyptic number.

It is an amenable number.

11143041409 is a deficient number, since it is larger than the sum of its proper divisors (1).

11143041409 is an equidigital number, since it uses as much as digits as its factorization.

11143041409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 28.

The spelling of 11143041409 in words is "eleven billion, one hundred forty-three million, forty-one thousand, four hundred nine".