2123103211 has 2 divisors, whose sum is σ = 2123103212. Its totient is φ = 2123103210.

The previous prime is 2123103209. The next prime is 2123103217. The reversal of 2123103211 is 1123013212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2123103211 - 2¹ = 2123103209 is a prime.

Together with 2123103209, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2123103217) 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, 1061551605 + 1061551606.

It is an arithmetic number, because the mean of its divisors is an integer number (1061551606).

Almost surely, 2^2123103211 is an apocalyptic number.

2123103211 is a deficient number, since it is larger than the sum of its proper divisors (1).

2123103211 is an equidigital number, since it uses as much as digits as its factorization.

2123103211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 2123103211 is about 46077.1441280815. The cubic root of 2123103211 is about 1285.2581576435.

Adding to 2123103211 its reverse (1123013212), we get a palindrome (3246116423).

The spelling of 2123103211 in words is "two billion, one hundred twenty-three million, one hundred three thousand, two hundred eleven".