11143347409 has 2 divisors, whose sum is σ = 11143347410. Its totient is φ = 11143347408.

The previous prime is 11143347337. The next prime is 11143347419. The reversal of 11143347409 is 90474334111.

11143347409 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., 11109160000 + 34187409 = 105400^2 + 5847^2 .

It is a cyclic number.

It is not a de Polignac number, because 11143347409 - 2⁹ = 11143346897 is a prime.

It is a super-4 number, since 4×11143347409⁴ (a number of 41 digits) contains 4444 as substring.

It is not a weakly prime, because it can be changed into another prime (11143347419) 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, 5571673704 + 5571673705.

It is an arithmetic number, because the mean of its divisors is an integer number (5571673705).

Almost surely, 2^11143347409 is an apocalyptic number.

It is an amenable number.

11143347409 is a deficient number, since it is larger than the sum of its proper divisors (1).

11143347409 is an equidigital number, since it uses as much as digits as its factorization.

11143347409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 37.

The spelling of 11143347409 in words is "eleven billion, one hundred forty-three million, three hundred forty-seven thousand, four hundred nine".