13312320121 has 8 divisors (see below), whose sum is σ = 13903447680. Its totient is φ = 12722220192.

The previous prime is 13312320097. The next prime is 13312320137. The reversal of 13312320121 is 12102321331.

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 13312320121 - 2⁵ = 13312320089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13312300121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 230365 + ... + 282298.

It is an arithmetic number, because the mean of its divisors is an integer number (1737930960).

Almost surely, 2^13312320121 is an apocalyptic number.

It is an amenable number.

13312320121 is a deficient number, since it is larger than the sum of its proper divisors (591127559).

13312320121 is a wasteful number, since it uses less digits than its factorization.

13312320121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513815.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 13312320121 its reverse (12102321331), we get a palindrome (25414641452).

The spelling of 13312320121 in words is "thirteen billion, three hundred twelve million, three hundred twenty thousand, one hundred twenty-one".