13531103432 has 96 divisors (see below), whose sum is σ = 32945188320. Its totient is φ = 5149186560.

The previous prime is 13531103429. The next prime is 13531103447. The reversal of 13531103432 is 23430113531.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 148928 + ... + 221904.

It is an arithmetic number, because the mean of its divisors is an integer number (343179045).

Almost surely, 2^13531103432 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 13531103432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16472594160).

13531103432 is an abundant number, since it is smaller than the sum of its proper divisors (19414084888).

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

13531103432 is a wasteful number, since it uses less digits than its factorization.

13531103432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73051 (or 73040 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 26.

Adding to 13531103432 its reverse (23430113531), we get a palindrome (36961216963).

The spelling of 13531103432 in words is "thirteen billion, five hundred thirty-one million, one hundred three thousand, four hundred thirty-two".