2109873211 has 2 divisors, whose sum is σ = 2109873212. Its totient is φ = 2109873210.

The previous prime is 2109873209. The next prime is 2109873239. The reversal of 2109873211 is 1123789012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2109873211 - 2¹ = 2109873209 is a prime.

Together with 2109873209, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2109873011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1054936605 + 1054936606.

It is an arithmetic number, because the mean of its divisors is an integer number (1054936606).

Almost surely, 2^2109873211 is an apocalyptic number.

2109873211 is a deficient number, since it is larger than the sum of its proper divisors (1).

2109873211 is an equidigital number, since it uses as much as digits as its factorization.

2109873211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 34.

The square root of 2109873211 is about 45933.3561913344. The cubic root of 2109873211 is about 1282.5829214017.

The spelling of 2109873211 in words is "two billion, one hundred nine million, eight hundred seventy-three thousand, two hundred eleven".