13321382272 has 32 divisors (see below), whose sum is σ = 28951302600. Its totient is φ = 6055173120.

The previous prime is 13321382237. The next prime is 13321382273. The reversal of 13321382272 is 27228312331.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13321382273) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4729197 + ... + 4732012.

Almost surely, 2^13321382272 is an apocalyptic number.

It is an amenable number.

13321382272 is an abundant number, since it is smaller than the sum of its proper divisors (15629920328).

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

13321382272 is an equidigital number, since it uses as much as digits as its factorization.

13321382272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9461234 (or 9461222 counting only the distinct ones).

The product of its digits is 24192, while the sum is 34.

It can be divided in two parts, 13321 and 382272, that added together give a palindrome (395593).

The spelling of 13321382272 in words is "thirteen billion, three hundred twenty-one million, three hundred eighty-two thousand, two hundred seventy-two".