20683211 has 2 divisors, whose sum is σ = 20683212. Its totient is φ = 20683210.

The previous prime is 20683193. The next prime is 20683241. The reversal of 20683211 is 11238602.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20683211 - 2¹⁰ = 20682187 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (20683241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10341605 + 10341606.

It is an arithmetic number, because the mean of its divisors is an integer number (10341606).

Almost surely, 2^20683211 is an apocalyptic number.

20683211 is a deficient number, since it is larger than the sum of its proper divisors (1).

20683211 is an equidigital number, since it uses as much as digits as its factorization.

20683211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 20683211 is about 4547.8798357037. The cubic root of 20683211 is about 274.4980861465.

The spelling of 20683211 in words is "twenty million, six hundred eighty-three thousand, two hundred eleven".