2123021711 has 2 divisors, whose sum is σ = 2123021712. Its totient is φ = 2123021710.

The previous prime is 2123021707. The next prime is 2123021713. The reversal of 2123021711 is 1171203212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2123021711 - 2² = 2123021707 is a prime.

It is a Sophie Germain prime.

Together with 2123021713, 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 (2123021713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061510855 + 1061510856.

It is an arithmetic number, because the mean of its divisors is an integer number (1061510856).

Almost surely, 2^2123021711 is an apocalyptic number.

2123021711 is a deficient number, since it is larger than the sum of its proper divisors (1).

2123021711 is an equidigital number, since it uses as much as digits as its factorization.

2123021711 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 168, while the sum is 20.

The square root of 2123021711 is about 46076.2597331858. The cubic root of 2123021711 is about 1285.2417116100.

Adding to 2123021711 its reverse (1171203212), we get a palindrome (3294224923).

The spelling of 2123021711 in words is "two billion, one hundred twenty-three million, twenty-one thousand, seven hundred eleven".