3111112312 has 144 divisors (see below), whose sum is σ = 7540669080. Its totient is φ = 1198834560.

The previous prime is 3111112297. The next prime is 3111112339. The reversal of 3111112312 is 2132111113.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 5074918 + ... + 5075530.

Almost surely, 2^3111112312 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 3111112312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3770334540).

3111112312 is an abundant number, since it is smaller than the sum of its proper divisors (4429556768).

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

3111112312 is a wasteful number, since it uses less digits than its factorization.

3111112312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 762 (or 740 counting only the distinct ones).

The product of its digits is 36, while the sum is 16.

The square root of 3111112312 is about 55777.3458672963. The cubic root of 3111112312 is about 1459.8399011286.

Adding to 3111112312 its reverse (2132111113), we get a palindrome (5243223425).

The spelling of 3111112312 in words is "three billion, one hundred eleven million, one hundred twelve thousand, three hundred twelve".