311321013303112 has 16 divisors (see below), whose sum is σ = 618063776410860. Its totient is φ = 146504006260224.

The previous prime is 311321013303109. The next prime is 311321013303119. The reversal of 311321013303112 is 211303310123113.

It can be written as a sum of positive squares in 2 ways, for example, as 269749287010116 + 41571726292996 = 16424046^2 + 6447614^2 .

It is not an unprimeable number, because it can be changed into a prime (311321013303119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1144562548773 + ... + 1144562549044.

Almost surely, 2^{311321013303112} is an apocalyptic number.

It is an amenable number.

311321013303112 is a deficient number, since it is larger than the sum of its proper divisors (306742763107748).

311321013303112 is a wasteful number, since it uses less digits than its factorization.

311321013303112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2289125097840 (or 2289125097836 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 25.

Adding to 311321013303112 its reverse (211303310123113), we get a palindrome (522624323426225).

The spelling of 311321013303112 in words is "three hundred eleven trillion, three hundred twenty-one billion, thirteen million, three hundred three thousand, one hundred twelve".