11534213215 has 16 divisors (see below), whose sum is σ = 15913078272. Its totient is φ = 7861810464.

The previous prime is 11534213209. The next prime is 11534213263. The reversal of 11534213215 is 51231243511.

It is a cyclic number.

It is not a de Polignac number, because 11534213215 - 2²⁷ = 11399995487 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 980829 + ... + 992518.

It is an arithmetic number, because the mean of its divisors is an integer number (994567392).

Almost surely, 2^11534213215 is an apocalyptic number.

11534213215 is a deficient number, since it is larger than the sum of its proper divisors (4378865057).

11534213215 is a wasteful number, since it uses less digits than its factorization.

11534213215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1973526.

The product of its digits is 3600, while the sum is 28.

Adding to 11534213215 its reverse (51231243511), we get a palindrome (62765456726).

The spelling of 11534213215 in words is "eleven billion, five hundred thirty-four million, two hundred thirteen thousand, two hundred fifteen".