13431120032 has 36 divisors (see below), whose sum is σ = 29064924378. Its totient is φ = 6105052800.

The previous prime is 13431120019. The next prime is 13431120061. The reversal of 13431120032 is 23002113431.

It can be written as a sum of positive squares in only one way, i.e., 13380936976 + 50183056 = 115676^2 + 7084^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13431119986 and 13431120013.

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 5 ways as a sum of consecutive naturals, for example, 1730519 + ... + 1738262.

Almost surely, 2^13431120032 is an apocalyptic number.

It is an amenable number.

13431120032 is an abundant number, since it is smaller than the sum of its proper divisors (15633804346).

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

13431120032 is a wasteful number, since it uses less digits than its factorization.

13431120032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3468813 (or 3468794 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 13431120032 its reverse (23002113431), we get a palindrome (36433233463).

The spelling of 13431120032 in words is "thirteen billion, four hundred thirty-one million, one hundred twenty thousand, thirty-two".