2012403312 has 40 divisors (see below), whose sum is σ = 5776344080. Its totient is φ = 670800960.

The previous prime is 2012403247. The next prime is 2012403317. The reversal of 2012403312 is 2133042102.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012403317) 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 7 ways as a sum of consecutive naturals, for example, 2328739 + ... + 2329602.

It is an arithmetic number, because the mean of its divisors is an integer number (144408602).

Almost surely, 2^2012403312 is an apocalyptic number.

It is an amenable number.

2012403312 is an abundant number, since it is smaller than the sum of its proper divisors (3763940768).

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

2012403312 is a wasteful number, since it uses less digits than its factorization.

2012403312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4658358 (or 4658346 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 2012403312 is about 44859.8184570558. The cubic root of 2012403312 is about 1262.5202165439.

Adding to 2012403312 its reverse (2133042102), we get a palindrome (4145445414).

The spelling of 2012403312 in words is "two billion, twelve million, four hundred three thousand, three hundred twelve".