311301220012 has 12 divisors (see below), whose sum is σ = 563562553680. Its totient is φ = 150283347536.

The previous prime is 311301219959. The next prime is 311301220033. The reversal of 311301220012 is 210022103113.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1341815488 + ... + 1341815719.

It is an arithmetic number, because the mean of its divisors is an integer number (46963546140).

Almost surely, 2^311301220012 is an apocalyptic number.

It is an amenable number.

311301220012 is a deficient number, since it is larger than the sum of its proper divisors (252261333668).

311301220012 is a wasteful number, since it uses less digits than its factorization.

311301220012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2683631240 (or 2683631238 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 311301220012 its reverse (210022103113), we get a palindrome (521323323125).

The spelling of 311301220012 in words is "three hundred eleven billion, three hundred one million, two hundred twenty thousand, twelve".