11532353521 has 16 divisors (see below), whose sum is σ = 12658464000. Its totient is φ = 10441202688.

The previous prime is 11532353513. The next prime is 11532353543. The reversal of 11532353521 is 12535323511.

It is a cyclic number.

It is not a de Polignac number, because 11532353521 - 2³ = 11532353513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11532353501) 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, 327640 + ... + 361126.

It is an arithmetic number, because the mean of its divisors is an integer number (791154000).

Almost surely, 2^11532353521 is an apocalyptic number.

It is an amenable number.

11532353521 is a deficient number, since it is larger than the sum of its proper divisors (1126110479).

11532353521 is a wasteful number, since it uses less digits than its factorization.

11532353521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34008.

The product of its digits is 13500, while the sum is 31.

The spelling of 11532353521 in words is "eleven billion, five hundred thirty-two million, three hundred fifty-three thousand, five hundred twenty-one".