312012312 has 32 divisors (see below), whose sum is σ = 781559280. Its totient is φ = 103800320.

The previous prime is 312012307. The next prime is 312012313. The reversal of 312012312 is 213210213.

It is a junction number, because it is equal to n+sod(n) for n = 312012291 and 312012300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312012313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28 + ... + 24980.

Almost surely, 2^312012312 is an apocalyptic number.

It is an amenable number.

312012312 is an abundant number, since it is smaller than the sum of its proper divisors (469546968).

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

312012312 is a wasteful number, since it uses less digits than its factorization.

312012312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25483 (or 25479 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 312012312 is about 17663.8702440886. The cubic root of 312012312 is about 678.2512099802.

Adding to 312012312 its reverse (213210213), we get a palindrome (525222525).

The spelling of 312012312 in words is "three hundred twelve million, twelve thousand, three hundred twelve".