3123311212 has 12 divisors (see below), whose sum is σ = 6246622480. Its totient is φ = 1338561936.

The previous prime is 3123311159. The next prime is 3123311237. The reversal of 3123311212 is 2121133213.

3123311212 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 3123311212.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55773387 + ... + 55773442.

Almost surely, 2^3123311212 is an apocalyptic number.

It is an amenable number.

3123311212 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

3123311212 is a wasteful number, since it uses less digits than its factorization.

3123311212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111546840 (or 111546838 counting only the distinct ones).

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

The square root of 3123311212 is about 55886.5924171442. The cubic root of 3123311212 is about 1461.7454591938.

Adding to 3123311212 its reverse (2121133213), we get a palindrome (5244444425).

The spelling of 3123311212 in words is "three billion, one hundred twenty-three million, three hundred eleven thousand, two hundred twelve".