312330012 has 12 divisors (see below), whose sum is σ = 728770056. Its totient is φ = 104110000.

The previous prime is 312329921. The next prime is 312330013. The reversal of 312330012 is 210033213.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 312329973 and 312330000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312330013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13013739 + ... + 13013762.

It is an arithmetic number, because the mean of its divisors is an integer number (60730838).

Almost surely, 2^312330012 is an apocalyptic number.

It is an amenable number.

312330012 is an abundant number, since it is smaller than the sum of its proper divisors (416440044).

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

312330012 is a wasteful number, since it uses less digits than its factorization.

312330012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26027508 (or 26027506 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 312330012 is about 17672.8608889449. The cubic root of 312330012 is about 678.4813369189.

Adding to 312330012 its reverse (210033213), we get a palindrome (522363225).

The spelling of 312330012 in words is "three hundred twelve million, three hundred thirty thousand, twelve".