11530140444 has 18 divisors (see below), whose sum is σ = 29145632880. Its totient is φ = 3843380136.

The previous prime is 11530140397. The next prime is 11530140463. The reversal of 11530140444 is 44404103511.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 160140804 + ... + 160140875.

Almost surely, 2^11530140444 is an apocalyptic number.

It is an amenable number.

11530140444 is an abundant number, since it is smaller than the sum of its proper divisors (17615492436).

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

11530140444 is a wasteful number, since it uses less digits than its factorization.

11530140444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320281689 (or 320281684 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

Adding to 11530140444 its reverse (44404103511), we get a palindrome (55934243955).

The spelling of 11530140444 in words is "eleven billion, five hundred thirty million, one hundred forty thousand, four hundred forty-four".