312311303113212 has 36 divisors (see below), whose sum is σ = 850180769587240. Its totient is φ = 96095785573152.

The previous prime is 312311303113193. The next prime is 312311303113223. The reversal of 312311303113212 is 212311303113213.

312311303113212 is a `hidden beast` number, since 3 + 1 + 2 + 3 + 1 + 130 + 311 + 3 + 212 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 333665921662 + ... + 333665922597.

Almost surely, 2^{312311303113212} is an apocalyptic number.

It is an amenable number.

312311303113212 is an abundant number, since it is smaller than the sum of its proper divisors (537869466474028).

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

312311303113212 is a wasteful number, since it uses less digits than its factorization.

312311303113212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667331844282 (or 667331844277 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

Adding to 312311303113212 its reverse (212311303113213), we get a palindrome (524622606226425).

Subtracting from 312311303113212 its reverse (212311303113213), we obtain a palindrome (99999999999999).

The spelling of 312311303113212 in words is "three hundred twelve trillion, three hundred eleven billion, three hundred three million, one hundred thirteen thousand, two hundred twelve".