3111231223 has 8 divisors (see below), whose sum is σ = 3181337280. Its totient is φ = 3041288160.

The previous prime is 3111231191. The next prime is 3111231239. The reversal of 3111231223 is 3221321113.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3111231223 - 2⁵ = 3111231191 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3111231223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3111235223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1728 + ... + 78901.

It is an arithmetic number, because the mean of its divisors is an integer number (397667160).

Almost surely, 2^3111231223 is an apocalyptic number.

3111231223 is a deficient number, since it is larger than the sum of its proper divisors (70106057).

3111231223 is an equidigital number, since it uses as much as digits as its factorization.

3111231223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81497.

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

The square root of 3111231223 is about 55778.4118006241. The cubic root of 3111231223 is about 1459.8584999226.

Adding to 3111231223 its reverse (3221321113), we get a palindrome (6332552336).

The spelling of 3111231223 in words is "three billion, one hundred eleven million, two hundred thirty-one thousand, two hundred twenty-three".