311203120311112 has 16 divisors (see below), whose sum is σ = 586271281158000. Its totient is φ = 154864112002320.

The previous prime is 311203120311079. The next prime is 311203120311113. The reversal of 311203120311112 is 211113021302113.

It is not an unprimeable number, because it can be changed into a prime (311203120311113) by changing a digit.

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, 92181017362 + ... + 92181020737.

It is an arithmetic number, because the mean of its divisors is an integer number (36641955072375).

Almost surely, 2^{311203120311112} is an apocalyptic number.

It is an amenable number.

311203120311112 is a deficient number, since it is larger than the sum of its proper divisors (275068160846888).

311203120311112 is a wasteful number, since it uses less digits than its factorization.

311203120311112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184362038316 (or 184362038312 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 22.

Adding to 311203120311112 its reverse (211113021302113), we get a palindrome (522316141613225).

The spelling of 311203120311112 in words is "three hundred eleven trillion, two hundred three billion, one hundred twenty million, three hundred eleven thousand, one hundred twelve".