2012120312 has 8 divisors (see below), whose sum is σ = 3772725600. Its totient is φ = 1006060152.

The previous prime is 2012120263. The next prime is 2012120329. The reversal of 2012120312 is 2130212102.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 125757512 + ... + 125757527.

It is an arithmetic number, because the mean of its divisors is an integer number (471590700).

Almost surely, 2^2012120312 is an apocalyptic number.

It is an amenable number.

2012120312 is a deficient number, since it is larger than the sum of its proper divisors (1760605288).

2012120312 is a wasteful number, since it uses less digits than its factorization.

2012120312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251515045 (or 251515041 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 2012120312 is about 44856.6640756978. The cubic root of 2012120312 is about 1262.4610319247.

Adding to 2012120312 its reverse (2130212102), we get a palindrome (4142332414).

The spelling of 2012120312 in words is "two billion, twelve million, one hundred twenty thousand, three hundred twelve".