3111213212 has 6 divisors (see below), whose sum is σ = 5444623128. Its totient is φ = 1555606604.

The previous prime is 3111213187. The next prime is 3111213223. The reversal of 3111213212 is 2123121113.

3111213212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 388901648 + ... + 388901655.

It is an arithmetic number, because the mean of its divisors is an integer number (907437188).

Almost surely, 2^3111213212 is an apocalyptic number.

It is an amenable number.

3111213212 is a deficient number, since it is larger than the sum of its proper divisors (2333409916).

3111213212 is a wasteful number, since it uses less digits than its factorization.

3111213212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 777803307 (or 777803305 counting only the distinct ones).

The product of its digits is 72, while the sum is 17.

The square root of 3111213212 is about 55778.2503490384. The cubic root of 3111213212 is about 1459.8556828640.

Adding to 3111213212 its reverse (2123121113), we get a palindrome (5234334325).

The spelling of 3111213212 in words is "three billion, one hundred eleven million, two hundred thirteen thousand, two hundred twelve".