13213334353523 has 4 divisors (see below), whose sum is σ = 13668966572640. Its totient is φ = 12757702134408.

The previous prime is 13213334353501. The next prime is 13213334353759. The reversal of 13213334353523 is 32535343331231.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 13213334353523 - 2⁶ = 13213334353459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13213334359523) 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, 227816109515 + ... + 227816109572.

It is an arithmetic number, because the mean of its divisors is an integer number (3417241643160).

Almost surely, 2^{13213334353523} is an apocalyptic number.

13213334353523 is a deficient number, since it is larger than the sum of its proper divisors (455632219117).

13213334353523 is an equidigital number, since it uses as much as digits as its factorization.

13213334353523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455632219116.

The product of its digits is 874800, while the sum is 41.

Adding to 13213334353523 its reverse (32535343331231), we get a palindrome (45748677684754).

The spelling of 13213334353523 in words is "thirteen trillion, two hundred thirteen billion, three hundred thirty-four million, three hundred fifty-three thousand, five hundred twenty-three".