11143204209 has 64 divisors (see below), whose sum is σ = 17450265600. Its totient is φ = 7017808896.

The previous prime is 11143204201. The next prime is 11143204213. The reversal of 11143204209 is 90240234111.

It is a happy number.

It is not a de Polignac number, because 11143204209 - 2³ = 11143204201 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (11143204201) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7830072 + ... + 7831494.

It is an arithmetic number, because the mean of its divisors is an integer number (272660400).

Almost surely, 2^11143204209 is an apocalyptic number.

It is an amenable number.

11143204209 is a deficient number, since it is larger than the sum of its proper divisors (6307061391).

11143204209 is a wasteful number, since it uses less digits than its factorization.

11143204209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1671 (or 1665 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The spelling of 11143204209 in words is "eleven billion, one hundred forty-three million, two hundred four thousand, two hundred nine".