13321001320002 has 24 divisors (see below), whose sum is σ = 28877932661760. Its totient is φ = 4437908675640.

The previous prime is 13321001319911. The next prime is 13321001320007. The reversal of 13321001320002 is 20002310012331.

13321001320002 is a `hidden beast` number, since 1 + 332 + 10 + 0 + 1 + 320 + 0 + 0 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (13321001320007) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 202057602 + ... + 202123517.

It is an arithmetic number, because the mean of its divisors is an integer number (1203247194240).

Almost surely, 2^{13321001320002} is an apocalyptic number.

13321001320002 is an abundant number, since it is smaller than the sum of its proper divisors (15556931341758).

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

13321001320002 is a wasteful number, since it uses less digits than its factorization.

13321001320002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404182958 (or 404182955 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 13321001320002 its reverse (20002310012331), we get a palindrome (33323311332333).

The spelling of 13321001320002 in words is "thirteen trillion, three hundred twenty-one billion, one million, three hundred twenty thousand, two".