2012331312 has 30 divisors (see below), whose sum is σ = 5631733172. Its totient is φ = 670777056.

The previous prime is 2012331301. The next prime is 2012331313. The reversal of 2012331312 is 2131332102.

2012331312 is a `hidden beast` number, since 20 + 1 + 2 + 331 + 312 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (2012331313) 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 5 ways as a sum of consecutive naturals, for example, 6987118 + ... + 6987405.

Almost surely, 2^2012331312 is an apocalyptic number.

It is an amenable number.

2012331312 is an abundant number, since it is smaller than the sum of its proper divisors (3619401860).

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

2012331312 is a wasteful number, since it uses less digits than its factorization.

2012331312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13974537 (or 13974528 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 2012331312 is about 44859.0159499738. The cubic root of 2012331312 is about 1262.5051594992.

Adding to 2012331312 its reverse (2131332102), we get a palindrome (4143663414).

The spelling of 2012331312 in words is "two billion, twelve million, three hundred thirty-one thousand, three hundred twelve".