2012320311 has 16 divisors (see below), whose sum is σ = 2876889600. Its totient is φ = 1246647168.

The previous prime is 2012320307. The next prime is 2012320313. The reversal of 2012320311 is 1130232102.

It is not a de Polignac number, because 2012320311 - 2² = 2012320307 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012320313) 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 15 ways as a sum of consecutive naturals, for example, 245701 + ... + 253758.

It is an arithmetic number, because the mean of its divisors is an integer number (179805600).

Almost surely, 2^2012320311 is an apocalyptic number.

2012320311 is a deficient number, since it is larger than the sum of its proper divisors (864569289).

2012320311 is a wasteful number, since it uses less digits than its factorization.

2012320311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499558.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 2012320311 is about 44858.8933323148. The cubic root of 2012320311 is about 1262.5028588766.

Adding to 2012320311 its reverse (1130232102), we get a palindrome (3142552413).

The spelling of 2012320311 in words is "two billion, twelve million, three hundred twenty thousand, three hundred eleven".