3111303111312 has 80 divisors (see below), whose sum is σ = 8816661322560. Its totient is φ = 937610150400.

The previous prime is 3111303111311. The next prime is 3111303111353. The reversal of 3111303111312 is 2131113031113.

It is a super-2 number, since 2×3111303111312² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3111303111311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16182387 + ... + 16373522.

It is an arithmetic number, because the mean of its divisors is an integer number (110208266532).

Almost surely, 2^{3111303111312} is an apocalyptic number.

It is an amenable number.

3111303111312 is an abundant number, since it is smaller than the sum of its proper divisors (5705358211248).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3111303111312 is a wasteful number, since it uses less digits than its factorization.

3111303111312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32556112 (or 32556106 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 21.

Adding to 3111303111312 its reverse (2131113031113), we get a palindrome (5242416142425).

The spelling of 3111303111312 in words is "three trillion, one hundred eleven billion, three hundred three million, one hundred eleven thousand, three hundred twelve".