312911112 has 32 divisors (see below), whose sum is σ = 828295200. Its totient is φ = 98168064.

The previous prime is 312911089. The next prime is 312911141. The reversal of 312911112 is 211119213.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 383062 + ... + 383877.

It is an arithmetic number, because the mean of its divisors is an integer number (25884225).

Almost surely, 2^312911112 is an apocalyptic number.

It is an amenable number.

312911112 is an abundant number, since it is smaller than the sum of its proper divisors (515384088).

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

312911112 is a wasteful number, since it uses less digits than its factorization.

312911112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 766965 (or 766961 counting only the distinct ones).

The product of its digits is 108, while the sum is 21.

The square root of 312911112 is about 17689.2937111689. The cubic root of 312911112 is about 678.9018549902.

It can be divided in two parts, 3129 and 11112, that added together give a palindrome (14241).

The spelling of 312911112 in words is "three hundred twelve million, nine hundred eleven thousand, one hundred twelve".