311112313012 has 6 divisors (see below), whose sum is σ = 544446547778. Its totient is φ = 155556156504.

The previous prime is 311112313007. The next prime is 311112313019. The reversal of 311112313012 is 210313211113.

It can be written as a sum of positive squares in only one way, i.e., 161030453796 + 150081859216 = 401286^2 + 387404^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311112313019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38889039123 + ... + 38889039130.

Almost surely, 2^311112313012 is an apocalyptic number.

It is an amenable number.

311112313012 is a deficient number, since it is larger than the sum of its proper divisors (233334234766).

311112313012 is a wasteful number, since it uses less digits than its factorization.

311112313012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77778078257 (or 77778078255 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 311112313012 its reverse (210313211113), we get a palindrome (521425524125).

The spelling of 311112313012 in words is "three hundred eleven billion, one hundred twelve million, three hundred thirteen thousand, twelve".