2120510312 has 8 divisors (see below), whose sum is σ = 3975956850. Its totient is φ = 1060255152.

The previous prime is 2120510303. The next prime is 2120510383. The reversal of 2120510312 is 2130150212.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1385775076 + 734735236 = 37226^2 + 27106^2 .

It is a tau number, because it is divible by the number of its divisors (8).

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 as a sum of consecutive naturals, namely, 132531887 + ... + 132531902.

Almost surely, 2^2120510312 is an apocalyptic number.

It is an amenable number.

2120510312 is a deficient number, since it is larger than the sum of its proper divisors (1855446538).

2120510312 is a wasteful number, since it uses less digits than its factorization.

2120510312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265063795 (or 265063791 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 2120510312 is about 46048.9990336381. Note that the first 3 decimals coincide. The cubic root of 2120510312 is about 1284.7347253786.

Adding to 2120510312 its reverse (2130150212), we get a palindrome (4250660524).

The spelling of 2120510312 in words is "two billion, one hundred twenty million, five hundred ten thousand, three hundred twelve".