2012320311331 has 16 divisors (see below), whose sum is σ = 2242340633088. Its totient is φ = 1790160012000.

The previous prime is 2012320311311. The next prime is 2012320311341. The reversal of 2012320311331 is 1331130232102.

It is a cyclic number.

It is not a de Polignac number, because 2012320311331 - 2⁷ = 2012320311203 is a prime.

It is a super-2 number, since 2×2012320311331² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2012320311301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2802181 + ... + 3446281.

It is an arithmetic number, because the mean of its divisors is an integer number (140146289568).

Almost surely, 2^{2012320311331} is an apocalyptic number.

2012320311331 is a deficient number, since it is larger than the sum of its proper divisors (230020321757).

2012320311331 is a wasteful number, since it uses less digits than its factorization.

2012320311331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 650202.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 2012320311331 its reverse (1331130232102), we get a palindrome (3343450543433).

The spelling of 2012320311331 in words is "two trillion, twelve billion, three hundred twenty million, three hundred eleven thousand, three hundred thirty-one".