111120202010173 has 2 divisors, whose sum is σ = 111120202010174. Its totient is φ = 111120202010172.

The previous prime is 111120202010161. The next prime is 111120202010227. The reversal of 111120202010173 is 371010202021111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 110445533620249 + 674668389924 = 10509307^2 + 821382^2 .

It is a cyclic number.

It is not a de Polignac number, because 111120202010173 - 2³⁷ = 110982763056701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111120202013173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55560101005086 + 55560101005087.

It is an arithmetic number, because the mean of its divisors is an integer number (55560101005087).

Almost surely, 2^{111120202010173} is an apocalyptic number.

It is an amenable number.

111120202010173 is a deficient number, since it is larger than the sum of its proper divisors (1).

111120202010173 is an equidigital number, since it uses as much as digits as its factorization.

111120202010173 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 111120202010173 its reverse (371010202021111), we get a palindrome (482130404031284).

The spelling of 111120202010173 in words is "one hundred eleven trillion, one hundred twenty billion, two hundred two million, ten thousand, one hundred seventy-three".