312232112 has 20 divisors (see below), whose sum is σ = 607669440. Its totient is φ = 155414208.

The previous prime is 312232079. The next prime is 312232147. The reversal of 312232112 is 211232213.

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 3 ways as a sum of consecutive naturals, for example, 40187 + ... + 47322.

It is an arithmetic number, because the mean of its divisors is an integer number (30383472).

Almost surely, 2^312232112 is an apocalyptic number.

It is an amenable number.

312232112 is a deficient number, since it is larger than the sum of its proper divisors (295437328).

312232112 is a wasteful number, since it uses less digits than its factorization.

312232112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87740 (or 87734 counting only the distinct ones).

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

The square root of 312232112 is about 17670.0908882779. The cubic root of 312232112 is about 678.4104394049.

Adding to 312232112 its reverse (211232213), we get a palindrome (523464325).

The spelling of 312232112 in words is "three hundred twelve million, two hundred thirty-two thousand, one hundred twelve".