2102712020771 has 2 divisors, whose sum is σ = 2102712020772. Its totient is φ = 2102712020770.

The previous prime is 2102712020767. The next prime is 2102712020777. The reversal of 2102712020771 is 1770202172012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2102712020771 - 2² = 2102712020767 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (2102712020777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1051356010385 + 1051356010386.

It is an arithmetic number, because the mean of its divisors is an integer number (1051356010386).

Almost surely, 2^{2102712020771} is an apocalyptic number.

2102712020771 is a deficient number, since it is larger than the sum of its proper divisors (1).

2102712020771 is an equidigital number, since it uses as much as digits as its factorization.

2102712020771 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5488, while the sum is 32.

Adding to 2102712020771 its reverse (1770202172012), we get a palindrome (3872914192783).

The spelling of 2102712020771 in words is "two trillion, one hundred two billion, seven hundred twelve million, twenty thousand, seven hundred seventy-one".