13331321001201 has 64 divisors (see below), whose sum is σ = 21118079324160. Its totient is φ = 7322609986560.

The previous prime is 13331321001197. The next prime is 13331321001211. The reversal of 13331321001201 is 10210012313331.

It is a happy number.

It is not a de Polignac number, because 13331321001201 - 2² = 13331321001197 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (13331321001211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 21378636 + ... + 21993378.

It is an arithmetic number, because the mean of its divisors is an integer number (329969989440).

Almost surely, 2^{13331321001201} is an apocalyptic number.

It is an amenable number.

13331321001201 is a deficient number, since it is larger than the sum of its proper divisors (7786758322959).

13331321001201 is a wasteful number, since it uses less digits than its factorization.

13331321001201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 615166.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 13331321001201 its reverse (10210012313331), we get a palindrome (23541333314532).

The spelling of 13331321001201 in words is "thirteen trillion, three hundred thirty-one billion, three hundred twenty-one million, one thousand, two hundred one".