13321155232 has 72 divisors (see below), whose sum is σ = 32945155488. Its totient is φ = 5190049920.

The previous prime is 13321155229. The next prime is 13321155233. The reversal of 13321155232 is 23255112331.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 13321155232.

It is not an unprimeable number, because it can be changed into a prime (13321155233) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 218638 + ... + 272845.

It is an arithmetic number, because the mean of its divisors is an integer number (457571604).

Almost surely, 2^13321155232 is an apocalyptic number.

It is an amenable number.

13321155232 is an abundant number, since it is smaller than the sum of its proper divisors (19624000256).

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

13321155232 is a wasteful number, since it uses less digits than its factorization.

13321155232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491522 (or 491503 counting only the distinct ones).

The product of its digits is 5400, while the sum is 28.

Adding to 13321155232 its reverse (23255112331), we get a palindrome (36576267563).

The spelling of 13321155232 in words is "thirteen billion, three hundred twenty-one million, one hundred fifty-five thousand, two hundred thirty-two".