11049143309 has 2 divisors, whose sum is σ = 11049143310. Its totient is φ = 11049143308.

The previous prime is 11049143299. The next prime is 11049143401. The reversal of 11049143309 is 90334194011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9393874084 + 1655269225 = 96922^2 + 40685^2 .

It is a cyclic number.

It is not a de Polignac number, because 11049143309 - 2⁴ = 11049143293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11049143509) 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, 5524571654 + 5524571655.

It is an arithmetic number, because the mean of its divisors is an integer number (5524571655).

Almost surely, 2^11049143309 is an apocalyptic number.

It is an amenable number.

11049143309 is a deficient number, since it is larger than the sum of its proper divisors (1).

11049143309 is an equidigital number, since it uses as much as digits as its factorization.

11049143309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 35.

The spelling of 11049143309 in words is "eleven billion, forty-nine million, one hundred forty-three thousand, three hundred nine".