211300250173 has 2 divisors, whose sum is σ = 211300250174. Its totient is φ = 211300250172.

The previous prime is 211300250149. The next prime is 211300250191. The reversal of 211300250173 is 371052003112.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 143097271524 + 68202978649 = 378282^2 + 261157^2 .

It is a cyclic number.

It is not a de Polignac number, because 211300250173 - 2²⁵ = 211266695741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211300250113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105650125086 + 105650125087.

It is an arithmetic number, because the mean of its divisors is an integer number (105650125087).

Almost surely, 2^211300250173 is an apocalyptic number.

It is an amenable number.

211300250173 is a deficient number, since it is larger than the sum of its proper divisors (1).

211300250173 is an equidigital number, since it uses as much as digits as its factorization.

211300250173 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1260, while the sum is 25.

Adding to 211300250173 its reverse (371052003112), we get a palindrome (582352253285).

The spelling of 211300250173 in words is "two hundred eleven billion, three hundred million, two hundred fifty thousand, one hundred seventy-three".