13121204204 has 12 divisors (see below), whose sum is σ = 23058184800. Its totient is φ = 6533151408.

The previous prime is 13121204191. The next prime is 13121204207. The reversal of 13121204204 is 40240212131.

It is not an unprimeable number, because it can be changed into a prime (13121204207) 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 3 ways as a sum of consecutive naturals, for example, 6861599 + ... + 6863510.

It is an arithmetic number, because the mean of its divisors is an integer number (1921515400).

Almost surely, 2^13121204204 is an apocalyptic number.

It is an amenable number.

13121204204 is a deficient number, since it is larger than the sum of its proper divisors (9936980596).

13121204204 is a wasteful number, since it uses less digits than its factorization.

13121204204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13725352 (or 13725350 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 13121204204 its reverse (40240212131), we get a palindrome (53361416335).

The spelling of 13121204204 in words is "thirteen billion, one hundred twenty-one million, two hundred four thousand, two hundred four".