312123013101212 has 24 divisors (see below), whose sum is σ = 560703634152816. Its totient is φ = 151945165427328.

The previous prime is 312123013101187. The next prime is 312123013101227. The reversal of 312123013101212 is 212101310321213.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2898777923 + ... + 2898885594.

It is an arithmetic number, because the mean of its divisors is an integer number (23362651423034).

Almost surely, 2^{312123013101212} is an apocalyptic number.

It is an amenable number.

312123013101212 is a deficient number, since it is larger than the sum of its proper divisors (248580621051604).

312123013101212 is a wasteful number, since it uses less digits than its factorization.

312123013101212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5797663877 (or 5797663875 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 312123013101212 its reverse (212101310321213), we get a palindrome (524224323422425).

The spelling of 312123013101212 in words is "three hundred twelve trillion, one hundred twenty-three billion, thirteen million, one hundred one thousand, two hundred twelve".