312002012120 has 16 divisors (see below), whose sum is σ = 702004527360. Its totient is φ = 124800804832.

The previous prime is 312002012111. The next prime is 312002012131. The reversal of 312002012120 is 21210200213.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 312002012095 and 312002012104.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3900025112 + ... + 3900025191.

It is an arithmetic number, because the mean of its divisors is an integer number (43875282960).

Almost surely, 2^312002012120 is an apocalyptic number.

It is an amenable number.

312002012120 is an abundant number, since it is smaller than the sum of its proper divisors (390002515240).

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

312002012120 is a wasteful number, since it uses less digits than its factorization.

312002012120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7800050314 (or 7800050310 counting only the distinct ones).

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

Adding to 312002012120 its reverse (21210200213), we get a palindrome (333212212333).

The spelling of 312002012120 in words is "three hundred twelve billion, two million, twelve thousand, one hundred twenty".