311021210012 has 12 divisors (see below), whose sum is σ = 544350740136. Its totient is φ = 155492427120.

The previous prime is 311021209999. The next prime is 311021210039. The reversal of 311021210012 is 210012120113.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4505939 + ... + 4574442.

It is an arithmetic number, because the mean of its divisors is an integer number (45362561678).

Almost surely, 2^311021210012 is an apocalyptic number.

It is an amenable number.

311021210012 is a deficient number, since it is larger than the sum of its proper divisors (233329530124).

311021210012 is a wasteful number, since it uses less digits than its factorization.

311021210012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9088948 (or 9088946 counting only the distinct ones).

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

Adding to 311021210012 its reverse (210012120113), we get a palindrome (521033330125).

The spelling of 311021210012 in words is "three hundred eleven billion, twenty-one million, two hundred ten thousand, twelve".