2111013173 has 2 divisors, whose sum is σ = 2111013174. Its totient is φ = 2111013172.

The previous prime is 2111013167. The next prime is 2111013187. The reversal of 2111013173 is 3713101112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1942870084 + 168143089 = 44078^2 + 12967^2 .

It is a cyclic number.

It is not a de Polignac number, because 2111013173 - 2²⁸ = 1842577717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2111013193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055506586 + 1055506587.

It is an arithmetic number, because the mean of its divisors is an integer number (1055506587).

Almost surely, 2^2111013173 is an apocalyptic number.

It is an amenable number.

2111013173 is a deficient number, since it is larger than the sum of its proper divisors (1).

2111013173 is an equidigital number, since it uses as much as digits as its factorization.

2111013173 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 126, while the sum is 20.

The square root of 2111013173 is about 45945.7633846691. The cubic root of 2111013173 is about 1282.8138724909.

Adding to 2111013173 its reverse (3713101112), we get a palindrome (5824114285).

It can be divided in two parts, 211 and 1013173, that multiplied together give a triangular number (213779503 = T₂₀₆₇₇).

The spelling of 2111013173 in words is "two billion, one hundred eleven million, thirteen thousand, one hundred seventy-three".