11532135215 has 64 divisors (see below), whose sum is σ = 16179004800. Its totient is φ = 7831240704.

The previous prime is 11532135151. The next prime is 11532135227. The reversal of 11532135215 is 51253123511.

It is a cyclic number.

It is not a de Polignac number, because 11532135215 - 2⁶ = 11532135151 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3417269 + ... + 3420641.

It is an arithmetic number, because the mean of its divisors is an integer number (252796950).

Almost surely, 2^11532135215 is an apocalyptic number.

11532135215 is a deficient number, since it is larger than the sum of its proper divisors (4646869585).

11532135215 is a wasteful number, since it uses less digits than its factorization.

11532135215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3516.

The product of its digits is 4500, while the sum is 29.

Adding to 11532135215 its reverse (51253123511), we get a palindrome (62785258726).

The spelling of 11532135215 in words is "eleven billion, five hundred thirty-two million, one hundred thirty-five thousand, two hundred fifteen".