312311312 has 20 divisors (see below), whose sum is σ = 606010320. Its totient is φ = 155921568.

The previous prime is 312311281. The next prime is 312311323. The reversal of 312311312 is 213113213.

It is a super-2 number, since 2×312311312² = 195076711206322688, which contains 22 as substring.

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, 3362 + ... + 25217.

It is an arithmetic number, because the mean of its divisors is an integer number (30300516).

Almost surely, 2^312311312 is an apocalyptic number.

It is an amenable number.

312311312 is a deficient number, since it is larger than the sum of its proper divisors (293699008).

312311312 is a wasteful number, since it uses less digits than its factorization.

312311312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29270 (or 29264 counting only the distinct ones).

The product of its digits is 108, while the sum is 17.

The square root of 312311312 is about 17672.3318212397. The cubic root of 312311312 is about 678.4677958419.

Adding to 312311312 its reverse (213113213), we get a palindrome (525424525).

The spelling of 312311312 in words is "three hundred twelve million, three hundred eleven thousand, three hundred twelve".