2012311223 has 12 divisors (see below), whose sum is σ = 2293700040. Its totient is φ = 1759751136.

The previous prime is 2012311159. The next prime is 2012311237. The reversal of 2012311223 is 3221132102.

It is not a de Polignac number, because 2012311223 - 2⁶ = 2012311159 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 (2012311253) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 310136 + ... + 316557.

It is an arithmetic number, because the mean of its divisors is an integer number (191141670).

Almost surely, 2^2012311223 is an apocalyptic number.

2012311223 is a deficient number, since it is larger than the sum of its proper divisors (281388817).

2012311223 is a wasteful number, since it uses less digits than its factorization.

2012311223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 626738 (or 626725 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2012311223 is about 44858.7920367903. The cubic root of 2012311223 is about 1262.5009583105.

Adding to 2012311223 its reverse (3221132102), we get a palindrome (5233443325).

The spelling of 2012311223 in words is "two billion, twelve million, three hundred eleven thousand, two hundred twenty-three".