13321121304 has 16 divisors (see below), whose sum is σ = 33302803320. Its totient is φ = 4440373760.

The previous prime is 13321121299. The next prime is 13321121323. The reversal of 13321121304 is 40312112331.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 277523337 + ... + 277523384.

Almost surely, 2^13321121304 is an apocalyptic number.

It is an amenable number.

13321121304 is an abundant number, since it is smaller than the sum of its proper divisors (19981682016).

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

13321121304 is a wasteful number, since it uses less digits than its factorization.

13321121304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555046730 (or 555046726 counting only the distinct ones).

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

Adding to 13321121304 its reverse (40312112331), we get a palindrome (53633233635).

The spelling of 13321121304 in words is "thirteen billion, three hundred twenty-one million, one hundred twenty-one thousand, three hundred four".