211423001189 has 2 divisors, whose sum is σ = 211423001190. Its totient is φ = 211423001188.

The previous prime is 211423001117. The next prime is 211423001249. The reversal of 211423001189 is 981100324112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 210043473025 + 1379528164 = 458305^2 + 37142^2 .

It is a cyclic number.

It is not a de Polignac number, because 211423001189 - 2⁸ = 211423000933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211423001689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105711500594 + 105711500595.

It is an arithmetic number, because the mean of its divisors is an integer number (105711500595).

Almost surely, 2^211423001189 is an apocalyptic number.

It is an amenable number.

211423001189 is a deficient number, since it is larger than the sum of its proper divisors (1).

211423001189 is an equidigital number, since it uses as much as digits as its factorization.

211423001189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 32.

The spelling of 211423001189 in words is "two hundred eleven billion, four hundred twenty-three million, one thousand, one hundred eighty-nine".