13531115432 has 16 divisors (see below), whose sum is σ = 25570613760. Its totient is φ = 6712285104.

The previous prime is 13531115393. The next prime is 13531115453. The reversal of 13531115432 is 23451113531.

It is a junction number, because it is equal to n+sod(n) for n = 13531115395 and 13531115404.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6657998 + ... + 6660029.

It is an arithmetic number, because the mean of its divisors is an integer number (1598163360).

Almost surely, 2^13531115432 is an apocalyptic number.

It is an amenable number.

13531115432 is a deficient number, since it is larger than the sum of its proper divisors (12039498328).

13531115432 is a wasteful number, since it uses less digits than its factorization.

13531115432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13318160 (or 13318156 counting only the distinct ones).

The product of its digits is 5400, while the sum is 29.

Adding to 13531115432 its reverse (23451113531), we get a palindrome (36982228963).

The spelling of 13531115432 in words is "thirteen billion, five hundred thirty-one million, one hundred fifteen thousand, four hundred thirty-two".