11544430213 has 4 divisors (see below), whose sum is σ = 11604872448. Its totient is φ = 11483987980.

The previous prime is 11544430201. The next prime is 11544430217. The reversal of 11544430213 is 31203444511.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11544430213 - 2²⁹ = 11007559301 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 (11544430217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30220831 + ... + 30221212.

It is an arithmetic number, because the mean of its divisors is an integer number (2901218112).

Almost surely, 2^11544430213 is an apocalyptic number.

It is an amenable number.

11544430213 is a deficient number, since it is larger than the sum of its proper divisors (60442235).

11544430213 is an equidigital number, since it uses as much as digits as its factorization.

11544430213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60442234.

The product of its (nonzero) digits is 5760, while the sum is 28.

Adding to 11544430213 its reverse (31203444511), we get a palindrome (42747874724).

The spelling of 11544430213 in words is "eleven billion, five hundred forty-four million, four hundred thirty thousand, two hundred thirteen".