312112120 has 16 divisors (see below), whose sum is σ = 702252360. Its totient is φ = 124844832.

The previous prime is 312112109. The next prime is 312112159. The reversal of 312112120 is 21211213.

312112120 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 312112120.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3901362 + ... + 3901441.

Almost surely, 2^312112120 is an apocalyptic number.

It is an amenable number.

312112120 is an abundant number, since it is smaller than the sum of its proper divisors (390140240).

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

312112120 is a wasteful number, since it uses less digits than its factorization.

312112120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7802814 (or 7802810 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 312112120 is about 17666.6952201027. The cubic root of 312112120 is about 678.3235230239.

Adding to 312112120 its reverse (21211213), we get a palindrome (333323333).

The spelling of 312112120 in words is "three hundred twelve million, one hundred twelve thousand, one hundred twenty".