3111213223 has 2 divisors, whose sum is σ = 3111213224. Its totient is φ = 3111213222.

The previous prime is 3111213187. The next prime is 3111213241. The reversal of 3111213223 is 3223121113.

It is a strong prime.

It is an emirp because it is prime and its reverse (3223121113) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3111213223 - 2¹⁷ = 3111082151 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3111213223.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3111213263) 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 as a sum of consecutive naturals, namely, 1555606611 + 1555606612.

It is an arithmetic number, because the mean of its divisors is an integer number (1555606612).

Almost surely, 2^3111213223 is an apocalyptic number.

3111213223 is a deficient number, since it is larger than the sum of its proper divisors (1).

3111213223 is an equidigital number, since it uses as much as digits as its factorization.

3111213223 is an odious number, because the sum of its binary digits is odd.

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

The square root of 3111213223 is about 55778.2504476431. The cubic root of 3111213223 is about 1459.8556845845.

Adding to 3111213223 its reverse (3223121113), we get a palindrome (6334334336).

The spelling of 3111213223 in words is "three billion, one hundred eleven million, two hundred thirteen thousand, two hundred twenty-three".