13121213304 has 64 divisors (see below), whose sum is σ = 33276983040. Its totient is φ = 4310634240.

The previous prime is 13121213293. The next prime is 13121213317. The reversal of 13121213304 is 40331212131.

13121213304 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4110349 + ... + 4113539.

It is an arithmetic number, because the mean of its divisors is an integer number (519952860).

Almost surely, 2^13121213304 is an apocalyptic number.

It is an amenable number.

13121213304 is an abundant number, since it is smaller than the sum of its proper divisors (20155769736).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13121213304 is a wasteful number, since it uses less digits than its factorization.

13121213304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5620 (or 5616 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 13121213304 its reverse (40331212131), we get a palindrome (53452425435).

The spelling of 13121213304 in words is "thirteen billion, one hundred twenty-one million, two hundred thirteen thousand, three hundred four".