312112305 has 32 divisors (see below), whose sum is σ = 555696000. Its totient is φ = 166211136.

The previous prime is 312112271. The next prime is 312112327. The reversal of 312112305 is 503211213.

It is not a de Polignac number, because 312112305 - 2²⁰ = 311063729 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 121171 + ... + 123719.

It is an arithmetic number, because the mean of its divisors is an integer number (17365500).

Almost surely, 2^312112305 is an apocalyptic number.

It is an amenable number.

312112305 is a deficient number, since it is larger than the sum of its proper divisors (243583695).

312112305 is a wasteful number, since it uses less digits than its factorization.

312112305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3470 (or 3464 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 312112305 is about 17666.7004559425. The cubic root of 312112305 is about 678.3236570461.

Adding to 312112305 its reverse (503211213), we get a palindrome (815323518).

The spelling of 312112305 in words is "three hundred twelve million, one hundred twelve thousand, three hundred five".