13313352521 has 8 divisors (see below), whose sum is σ = 15253588800. Its totient is φ = 11382698448.

The previous prime is 13313352517. The next prime is 13313352523. The reversal of 13313352521 is 12525331331.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13313352521 - 2² = 13313352517 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13313352523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2392571 + ... + 2398128.

It is an arithmetic number, because the mean of its divisors is an integer number (1906698600).

Almost surely, 2^13313352521 is an apocalyptic number.

It is an amenable number.

13313352521 is a deficient number, since it is larger than the sum of its proper divisors (1940236279).

13313352521 is an equidigital number, since it uses as much as digits as its factorization.

13313352521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4791103.

The product of its digits is 8100, while the sum is 29.

Adding to 13313352521 its reverse (12525331331), we get a palindrome (25838683852).

The spelling of 13313352521 in words is "thirteen billion, three hundred thirteen million, three hundred fifty-two thousand, five hundred twenty-one".