2012003131321 has 2 divisors, whose sum is σ = 2012003131322. Its totient is φ = 2012003131320.

The previous prime is 2012003131297. The next prime is 2012003131357. The reversal of 2012003131321 is 1231313002102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2011960686096 + 42445225 = 1418436^2 + 6515^2 .

It is a cyclic number.

It is not a de Polignac number, because 2012003131321 - 2¹³ = 2012003123129 is a prime.

It is not a weakly prime, because it can be changed into another prime (2012033131321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1006001565660 + 1006001565661.

It is an arithmetic number, because the mean of its divisors is an integer number (1006001565661).

Almost surely, 2^{2012003131321} is an apocalyptic number.

It is an amenable number.

2012003131321 is a deficient number, since it is larger than the sum of its proper divisors (1).

2012003131321 is an equidigital number, since it uses as much as digits as its factorization.

2012003131321 is an evil number, because the sum of its binary digits is even.

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

Adding to 2012003131321 its reverse (1231313002102), we get a palindrome (3243316133423).

The spelling of 2012003131321 in words is "two trillion, twelve billion, three million, one hundred thirty-one thousand, three hundred twenty-one".