3111123412 has 12 divisors (see below), whose sum is σ = 5452707316. Its totient is φ = 1553207040.

The previous prime is 3111123397. The next prime is 3111123443. The reversal of 3111123412 is 2143211113.

It can be written as a sum of positive squares in 2 ways, for example, as 1363381776 + 1747741636 = 36924^2 + 41806^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 3111123412.

It is a congruent number.

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, 585693 + ... + 590980.

Almost surely, 2^3111123412 is an apocalyptic number.

It is an amenable number.

3111123412 is a deficient number, since it is larger than the sum of its proper divisors (2341583904).

3111123412 is a wasteful number, since it uses less digits than its factorization.

3111123412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1177338 (or 1177336 counting only the distinct ones).

The product of its digits is 144, while the sum is 19.

The square root of 3111123412 is about 55777.4453699701. The cubic root of 3111123412 is about 1459.8416372927.

Adding to 3111123412 its reverse (2143211113), we get a palindrome (5254334525).

The spelling of 3111123412 in words is "three billion, one hundred eleven million, one hundred twenty-three thousand, four hundred twelve".