13215432032 has 48 divisors (see below), whose sum is σ = 28400186304. Its totient is φ = 6003408000.

The previous prime is 13215432019. The next prime is 13215432049. The reversal of 13215432032 is 23023451231.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 13215431992 and 13215432010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 627107 + ... + 647837.

It is an arithmetic number, because the mean of its divisors is an integer number (591670548).

Almost surely, 2^13215432032 is an apocalyptic number.

It is an amenable number.

13215432032 is an abundant number, since it is smaller than the sum of its proper divisors (15184754272).

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

13215432032 is a wasteful number, since it uses less digits than its factorization.

13215432032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22563 (or 22555 counting only the distinct ones).

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

Adding to 13215432032 its reverse (23023451231), we get a palindrome (36238883263).

The spelling of 13215432032 in words is "thirteen billion, two hundred fifteen million, four hundred thirty-two thousand, thirty-two".