13321311111001 has 4 divisors (see below), whose sum is σ = 13321327463604. Its totient is φ = 13321294758400.

The previous prime is 13321311110981. The next prime is 13321311111013. The reversal of 13321311111001 is 10011111312331.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6298599109401 + 7022712001600 = 2509701^2 + 2650040^2 .

It is a cyclic number.

It is not a de Polignac number, because 13321311111001 - 2¹¹ = 13321311108953 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13321311111001.

It is not an unprimeable number, because it can be changed into a prime (13321311111301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6886540 + ... + 8606221.

It is an arithmetic number, because the mean of its divisors is an integer number (3330331865901).

Almost surely, 2^{13321311111001} is an apocalyptic number.

It is an amenable number.

13321311111001 is a deficient number, since it is larger than the sum of its proper divisors (16352603).

13321311111001 is an equidigital number, since it uses as much as digits as its factorization.

13321311111001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16352602.

The product of its (nonzero) digits is 54, while the sum is 19.

Adding to 13321311111001 its reverse (10011111312331), we get a palindrome (23332422423332).

The spelling of 13321311111001 in words is "thirteen trillion, three hundred twenty-one billion, three hundred eleven million, one hundred eleven thousand, one".