312111020012 has 12 divisors (see below), whose sum is σ = 595848311016. Its totient is φ = 141868645440.

The previous prime is 312111019999. The next prime is 312111020021. The reversal of 312111020012 is 210020111213.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3546716093 + ... + 3546716180.

It is an arithmetic number, because the mean of its divisors is an integer number (49654025918).

Almost surely, 2^312111020012 is an apocalyptic number.

It is an amenable number.

312111020012 is a deficient number, since it is larger than the sum of its proper divisors (283737291004).

312111020012 is a wasteful number, since it uses less digits than its factorization.

312111020012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7093432288 (or 7093432286 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 312111020012 its reverse (210020111213), we get a palindrome (522131131225).

The spelling of 312111020012 in words is "three hundred twelve billion, one hundred eleven million, twenty thousand, twelve".