3111213211 has 16 divisors (see below), whose sum is σ = 3178925568. Its totient is φ = 3044448000.

The previous prime is 3111213187. The next prime is 3111213223. The reversal of 3111213211 is 1123121113.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 3111213211 - 2⁵ = 3111213179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3111213241) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 4554876 + ... + 4555558.

It is an arithmetic number, because the mean of its divisors is an integer number (198682848).

Almost surely, 2^3111213211 is an apocalyptic number.

3111213211 is a deficient number, since it is larger than the sum of its proper divisors (67712357).

3111213211 is a wasteful number, since it uses less digits than its factorization.

3111213211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1242.

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

The square root of 3111213211 is about 55778.2503400743. The cubic root of 3111213211 is about 1459.8556827076.

Adding to 3111213211 its reverse (1123121113), we get a palindrome (4234334324).

The spelling of 3111213211 in words is "three billion, one hundred eleven million, two hundred thirteen thousand, two hundred eleven".