311002000312 has 8 divisors (see below), whose sum is σ = 583128750600. Its totient is φ = 155501000152.

The previous prime is 311002000297. The next prime is 311002000373. The reversal of 311002000312 is 213000200113.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 311002000292 and 311002000301.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 19437625012 + ... + 19437625027.

It is an arithmetic number, because the mean of its divisors is an integer number (72891093825).

Almost surely, 2^311002000312 is an apocalyptic number.

It is an amenable number.

311002000312 is a deficient number, since it is larger than the sum of its proper divisors (272126750288).

311002000312 is a wasteful number, since it uses less digits than its factorization.

311002000312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38875250045 (or 38875250041 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 311002000312 its reverse (213000200113), we get a palindrome (524002200425).

The spelling of 311002000312 in words is "three hundred eleven billion, two million, three hundred twelve", and thus it is an aban number.