1110121011173 has 2 divisors, whose sum is σ = 1110121011174. Its totient is φ = 1110121011172.

The previous prime is 1110121011163. The next prime is 1110121011211. The reversal of 1110121011173 is 3711101210111.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 931375546084 + 178745465089 = 965078^2 + 422783^2 .

It is a cyclic number.

It is not a de Polignac number, because 1110121011173 - 2¹⁰ = 1110121010149 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1110121011163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555060505586 + 555060505587.

It is an arithmetic number, because the mean of its divisors is an integer number (555060505587).

Almost surely, 2^{1110121011173} is an apocalyptic number.

It is an amenable number.

1110121011173 is a deficient number, since it is larger than the sum of its proper divisors (1).

1110121011173 is an equidigital number, since it uses as much as digits as its factorization.

1110121011173 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 20.

Adding to 1110121011173 its reverse (3711101210111), we get a palindrome (4821222221284).

The spelling of 1110121011173 in words is "one trillion, one hundred ten billion, one hundred twenty-one million, eleven thousand, one hundred seventy-three".