211110073 has 2 divisors, whose sum is σ = 211110074. Its totient is φ = 211110072.

The previous prime is 211110061. The next prime is 211110079. The reversal of 211110073 is 370011112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 176570944 + 34539129 = 13288^2 + 5877^2 .

It is a cyclic number.

It is not a de Polignac number, because 211110073 - 2¹³ = 211101881 is a prime.

It is not a weakly prime, because it can be changed into another prime (211110079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105555036 + 105555037.

It is an arithmetic number, because the mean of its divisors is an integer number (105555037).

Almost surely, 2^211110073 is an apocalyptic number.

It is an amenable number.

211110073 is a deficient number, since it is larger than the sum of its proper divisors (1).

211110073 is an equidigital number, since it uses as much as digits as its factorization.

211110073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42, while the sum is 16.

The square root of 211110073 is about 14529.6274212383. The cubic root of 211110073 is about 595.4376865707.

Adding to 211110073 its reverse (370011112), we get a palindrome (581121185).

The spelling of 211110073 in words is "two hundred eleven million, one hundred ten thousand, seventy-three".