3111111112 has 16 divisors (see below), whose sum is σ = 6176470860. Its totient is φ = 1464052224.

The previous prime is 3111111109. The next prime is 3111111121. The reversal of 3111111112 is 2111111113.

It can be written as a sum of positive squares in 2 ways, for example, as 3094251876 + 16859236 = 55626^2 + 4106^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3111111092 and 3111111101.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11437773 + ... + 11438044.

Almost surely, 2^3111111112 is an apocalyptic number.

It is an amenable number.

3111111112 is a deficient number, since it is larger than the sum of its proper divisors (3065359748).

3111111112 is a wasteful number, since it uses less digits than its factorization.

3111111112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22875840 (or 22875836 counting only the distinct ones).

The product of its digits is 6, while the sum is 13.

The square root of 3111111112 is about 55777.3351102399. The cubic root of 3111111112 is about 1459.8397134350.

Adding to 3111111112 its reverse (2111111113), we get a palindrome (5222222225).

Subtracting from 3111111112 its reverse (2111111113), we obtain a palindrome (999999999).

It can be divided in two parts, 311111111 and 2, that added together give a palindrome (311111113).

The spelling of 3111111112 in words is "three billion, one hundred eleven million, one hundred eleven thousand, one hundred twelve".