11534213217 has 4 divisors (see below), whose sum is σ = 15378950960. Its totient is φ = 7689475476.

The previous prime is 11534213209. The next prime is 11534213263. The reversal of 11534213217 is 71231243511.

11534213217 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 11534213217 - 2³ = 11534213209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11534203217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1922368867 + ... + 1922368872.

It is an arithmetic number, because the mean of its divisors is an integer number (3844737740).

Almost surely, 2^11534213217 is an apocalyptic number.

It is an amenable number.

11534213217 is a deficient number, since it is larger than the sum of its proper divisors (3844737743).

11534213217 is an equidigital number, since it uses as much as digits as its factorization.

11534213217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3844737742.

The product of its digits is 5040, while the sum is 30.

Adding to 11534213217 its reverse (71231243511), we get a palindrome (82765456728).

The spelling of 11534213217 in words is "eleven billion, five hundred thirty-four million, two hundred thirteen thousand, two hundred seventeen".