211423063 has 2 divisors, whose sum is σ = 211423064. Its totient is φ = 211423062.

The previous prime is 211422979. The next prime is 211423081. The reversal of 211423063 is 360324112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 211423063 - 2¹³ = 211414871 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211424063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105711531 + 105711532.

It is an arithmetic number, because the mean of its divisors is an integer number (105711532).

Almost surely, 2^211423063 is an apocalyptic number.

211423063 is a deficient number, since it is larger than the sum of its proper divisors (1).

211423063 is an equidigital number, since it uses as much as digits as its factorization.

211423063 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 211423063 is about 14540.3941831025. The cubic root of 211423063 is about 595.7318048839.

Adding to 211423063 its reverse (360324112), we get a palindrome (571747175).

The spelling of 211423063 in words is "two hundred eleven million, four hundred twenty-three thousand, sixty-three".