211120211173 has 2 divisors, whose sum is σ = 211120211174. Its totient is φ = 211120211172.

The previous prime is 211120211119. The next prime is 211120211261. The reversal of 211120211173 is 371112021112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 204418824129 + 6701387044 = 452127^2 + 81862^2 .

It is a cyclic number.

It is not a de Polignac number, because 211120211173 - 2³⁷ = 73681257701 is a prime.

It is a super-2 number, since 2×211120211173² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211120218173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105560105586 + 105560105587.

It is an arithmetic number, because the mean of its divisors is an integer number (105560105587).

Almost surely, 2^211120211173 is an apocalyptic number.

It is an amenable number.

211120211173 is a deficient number, since it is larger than the sum of its proper divisors (1).

211120211173 is an equidigital number, since it uses as much as digits as its factorization.

211120211173 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168, while the sum is 22.

Adding to 211120211173 its reverse (371112021112), we get a palindrome (582232232285).

The spelling of 211120211173 in words is "two hundred eleven billion, one hundred twenty million, two hundred eleven thousand, one hundred seventy-three".