11143420304 has 20 divisors (see below), whose sum is σ = 22860399564. Its totient is φ = 5243962368.

The previous prime is 11143420291. The next prime is 11143420361. The reversal of 11143420304 is 40302434111.

It can be written as a sum of positive squares in 2 ways, for example, as 7131464704 + 4011955600 = 84448^2 + 63340^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 11143420304.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 20483957 + ... + 20484500.

Almost surely, 2^11143420304 is an apocalyptic number.

It is an amenable number.

11143420304 is an abundant number, since it is smaller than the sum of its proper divisors (11716979260).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11143420304 is a wasteful number, since it uses less digits than its factorization.

11143420304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40968482 (or 40968476 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 11143420304 its reverse (40302434111), we get a palindrome (51445854415).

The spelling of 11143420304 in words is "eleven billion, one hundred forty-three million, four hundred twenty thousand, three hundred four".