13521063355 has 4 divisors (see below), whose sum is σ = 16225276032. Its totient is φ = 10816850680.

The previous prime is 13521063349. The next prime is 13521063403. The reversal of 13521063355 is 55336012531.

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

It is not a de Polignac number, because 13521063355 - 2⁹ = 13521062843 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 13521063355.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1352106331 + ... + 1352106340.

It is an arithmetic number, because the mean of its divisors is an integer number (4056319008).

Almost surely, 2^13521063355 is an apocalyptic number.

13521063355 is a deficient number, since it is larger than the sum of its proper divisors (2704212677).

13521063355 is an equidigital number, since it uses as much as digits as its factorization.

13521063355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2704212676.

The product of its (nonzero) digits is 40500, while the sum is 34.

Adding to 13521063355 its reverse (55336012531), we get a palindrome (68857075886).

The spelling of 13521063355 in words is "thirteen billion, five hundred twenty-one million, sixty-three thousand, three hundred fifty-five".