2120121304 has 32 divisors (see below), whose sum is σ = 4544593920. Its totient is φ = 908328096.

The previous prime is 2120121293. The next prime is 2120121313. The reversal of 2120121304 is 4031210212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 340927 + ... + 347089.

It is an arithmetic number, because the mean of its divisors is an integer number (142018560).

Almost surely, 2^2120121304 is an apocalyptic number.

It is an amenable number.

2120121304 is an abundant number, since it is smaller than the sum of its proper divisors (2424472616).

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

2120121304 is a wasteful number, since it uses less digits than its factorization.

2120121304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12319 (or 12315 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 2120121304 is about 46044.7749913060. The cubic root of 2120121304 is about 1284.6561589682.

Adding to 2120121304 its reverse (4031210212), we get a palindrome (6151331516).

The spelling of 2120121304 in words is "two billion, one hundred twenty million, one hundred twenty-one thousand, three hundred four".