11530424543 has 16 divisors (see below), whose sum is σ = 12688734240. Its totient is φ = 10390838400.

The previous prime is 11530424527. The next prime is 11530424567. The reversal of 11530424543 is 34542403511.

It is a cyclic number.

It is not a de Polignac number, because 11530424543 - 2⁴ = 11530424527 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11530424443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 622013 + ... + 640281.

It is an arithmetic number, because the mean of its divisors is an integer number (793045890).

Almost surely, 2^11530424543 is an apocalyptic number.

11530424543 is a deficient number, since it is larger than the sum of its proper divisors (1158309697).

11530424543 is a wasteful number, since it uses less digits than its factorization.

11530424543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18778.

The product of its (nonzero) digits is 28800, while the sum is 32.

The spelling of 11530424543 in words is "eleven billion, five hundred thirty million, four hundred twenty-four thousand, five hundred forty-three".