13320440133401 has 4 divisors (see below), whose sum is σ = 13320447439872. Its totient is φ = 13320432826932.

The previous prime is 13320440133289. The next prime is 13320440133431. The reversal of 13320440133401 is 10433104402331.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 13320440133401 - 2¹⁸ = 13320439871257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13320440133431) 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, 1586216 + ... + 5399718.

It is an arithmetic number, because the mean of its divisors is an integer number (3330111859968).

Almost surely, 2^{13320440133401} is an apocalyptic number.

It is an amenable number.

13320440133401 is a deficient number, since it is larger than the sum of its proper divisors (7306471).

13320440133401 is an equidigital number, since it uses as much as digits as its factorization.

13320440133401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7306470.

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 13320440133401 its reverse (10433104402331), we get a palindrome (23753544535732).

The spelling of 13320440133401 in words is "thirteen trillion, three hundred twenty billion, four hundred forty million, one hundred thirty-three thousand, four hundred one".