13321000200401 has 4 divisors (see below), whose sum is σ = 13321009601892. Its totient is φ = 13320990798912.

The previous prime is 13321000200359. The next prime is 13321000200421. The reversal of 13321000200401 is 10400200012331.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 5447089210000 + 7873910990401 = 2333900^2 + 2806049^2 .

It is a cyclic number.

It is not a de Polignac number, because 13321000200401 - 2⁶ = 13321000200337 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 13321000200401.

It is not an unprimeable number, because it can be changed into a prime (13321000200421) 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, 2093276 + ... + 5569901.

It is an arithmetic number, because the mean of its divisors is an integer number (3330252400473).

Almost surely, 2^{13321000200401} is an apocalyptic number.

It is an amenable number.

13321000200401 is a deficient number, since it is larger than the sum of its proper divisors (9401491).

13321000200401 is an equidigital number, since it uses as much as digits as its factorization.

13321000200401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9401490.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 13321000200401 its reverse (10400200012331), we get a palindrome (23721200212732).

The spelling of 13321000200401 in words is "thirteen trillion, three hundred twenty-one billion, two hundred thousand, four hundred one".