2111311223 has 8 divisors (see below), whose sum is σ = 2469042048. Its totient is φ = 1767609144.

The previous prime is 2111311219. The next prime is 2111311229. The reversal of 2111311223 is 3221131112.

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

It is not a de Polignac number, because 2111311223 - 2² = 2111311219 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111311229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3506861 + ... + 3507462.

It is an arithmetic number, because the mean of its divisors is an integer number (308630256).

Almost surely, 2^2111311223 is an apocalyptic number.

2111311223 is a deficient number, since it is larger than the sum of its proper divisors (357730825).

2111311223 is an equidigital number, since it uses as much as digits as its factorization.

2111311223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7014373.

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

The square root of 2111311223 is about 45949.0067683731. The cubic root of 2111311223 is about 1282.8742423466.

Adding to 2111311223 its reverse (3221131112), we get a palindrome (5332442335).

The spelling of 2111311223 in words is "two billion, one hundred eleven million, three hundred eleven thousand, two hundred twenty-three".