312545312112 has 80 divisors (see below), whose sum is σ = 880917403392. Its totient is φ = 94699100160.

The previous prime is 312545312081. The next prime is 312545312117. The reversal of 312545312112 is 211213545213.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 312545312112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312545312117) 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 15 ways as a sum of consecutive naturals, for example, 4919493 + ... + 4982619.

Almost surely, 2^312545312112 is an apocalyptic number.

It is an amenable number.

312545312112 is an abundant number, since it is smaller than the sum of its proper divisors (568372091280).

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

312545312112 is a wasteful number, since it uses less digits than its factorization.

312545312112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72526 (or 72520 counting only the distinct ones).

The product of its digits is 7200, while the sum is 30.

Adding to 312545312112 its reverse (211213545213), we get a palindrome (523758857325).

The spelling of 312545312112 in words is "three hundred twelve billion, five hundred forty-five million, three hundred twelve thousand, one hundred twelve".