13531202432 has 64 divisors (see below), whose sum is σ = 29495597040. Its totient is φ = 6132080640.

The previous prime is 13531202383. The next prime is 13531202449. The reversal of 13531202432 is 23420213531.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 460238 + ... + 488754.

Almost surely, 2^13531202432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13531202432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14747798520).

13531202432 is an abundant number, since it is smaller than the sum of its proper divisors (15964394608).

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

13531202432 is a wasteful number, since it uses less digits than its factorization.

13531202432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28879 (or 28867 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 26.

Adding to 13531202432 its reverse (23420213531), we get a palindrome (36951415963).

The spelling of 13531202432 in words is "thirteen billion, five hundred thirty-one million, two hundred two thousand, four hundred thirty-two".