312112300220 has 36 divisors (see below), whose sum is σ = 762445764360. Its totient is φ = 107009931168.

The previous prime is 312112300217. The next prime is 312112300259. The reversal of 312112300220 is 22003211213.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 159239990 + ... + 159241949.

It is an arithmetic number, because the mean of its divisors is an integer number (21179049010).

Almost surely, 2^312112300220 is an apocalyptic number.

It is an amenable number.

312112300220 is an abundant number, since it is smaller than the sum of its proper divisors (450333464140).

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

312112300220 is a wasteful number, since it uses less digits than its factorization.

312112300220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318481962 (or 318481953 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 312112300220 its reverse (22003211213), we get a palindrome (334115511433).

The spelling of 312112300220 in words is "three hundred twelve billion, one hundred twelve million, three hundred thousand, two hundred twenty".