11535312432 has 80 divisors (see below), whose sum is σ = 34137949952. Its totient is φ = 3287934720.

The previous prime is 11535312421. The next prime is 11535312461. The reversal of 11535312432 is 23421353511.

It is a self number, because there is not a number n which added to its sum of digits gives 11535312432.

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, 100683 + ... + 182229.

Almost surely, 2^11535312432 is an apocalyptic number.

11535312432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11535312432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17068974976).

11535312432 is an abundant number, since it is smaller than the sum of its proper divisors (22602637520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11535312432 is a wasteful number, since it uses less digits than its factorization.

11535312432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81986 (or 81980 counting only the distinct ones).

The product of its digits is 10800, while the sum is 30.

Adding to 11535312432 its reverse (23421353511), we get a palindrome (34956665943).

The spelling of 11535312432 in words is "eleven billion, five hundred thirty-five million, three hundred twelve thousand, four hundred thirty-two".