3111223312 has 80 divisors (see below), whose sum is σ = 6468336000. Its totient is φ = 1444608000.

The previous prime is 3111223309. The next prime is 3111223319. The reversal of 3111223312 is 2133221113.

It is a self number, because there is not a number n which added to its sum of digits gives 3111223312.

It is not an unprimeable number, because it can be changed into a prime (3111223319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12395187 + ... + 12395437.

It is an arithmetic number, because the mean of its divisors is an integer number (80854200).

Almost surely, 2^3111223312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3111223312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3234168000).

3111223312 is an abundant number, since it is smaller than the sum of its proper divisors (3357112688).

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

3111223312 is a wasteful number, since it uses less digits than its factorization.

3111223312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 704 (or 698 counting only the distinct ones).

The product of its digits is 216, while the sum is 19.

The square root of 3111223312 is about 55778.3408860464. The cubic root of 3111223312 is about 1459.8572625829.

Adding to 3111223312 its reverse (2133221113), we get a palindrome (5244444425).

The spelling of 3111223312 in words is "three billion, one hundred eleven million, two hundred twenty-three thousand, three hundred twelve".