2012311123871 has 2 divisors, whose sum is σ = 2012311123872. Its totient is φ = 2012311123870.

The previous prime is 2012311123841. The next prime is 2012311123873. The reversal of 2012311123871 is 1783211132102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2012311123871 - 2²⁶ = 2012244015007 is a prime.

Together with 2012311123873, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2012311123873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1006155561935 + 1006155561936.

It is an arithmetic number, because the mean of its divisors is an integer number (1006155561936).

Almost surely, 2^{2012311123871} is an apocalyptic number.

2012311123871 is a deficient number, since it is larger than the sum of its proper divisors (1).

2012311123871 is an equidigital number, since it uses as much as digits as its factorization.

2012311123871 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 32.

Adding to 2012311123871 its reverse (1783211132102), we get a palindrome (3795522255973).

The spelling of 2012311123871 in words is "two trillion, twelve billion, three hundred eleven million, one hundred twenty-three thousand, eight hundred seventy-one".