13215324432 has 40 divisors (see below), whose sum is σ = 34783737984. Its totient is φ = 4321992064.

The previous prime is 13215324431. The next prime is 13215324511. The reversal of 13215324432 is 23442351231.

It is a super-2 number, since 2×13215324432² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13215324432.

It is not an unprimeable number, because it can be changed into a prime (13215324431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2594808 + ... + 2599895.

Almost surely, 2^13215324432 is an apocalyptic number.

13215324432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13215324432 is an abundant number, since it is smaller than the sum of its proper divisors (21568413552).

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

13215324432 is a wasteful number, since it uses less digits than its factorization.

13215324432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5194767 (or 5194761 counting only the distinct ones).

The product of its digits is 17280, while the sum is 30.

Adding to 13215324432 its reverse (23442351231), we get a palindrome (36657675663).

The spelling of 13215324432 in words is "thirteen billion, two hundred fifteen million, three hundred twenty-four thousand, four hundred thirty-two".