11123202173 has 2 divisors, whose sum is σ = 11123202174. Its totient is φ = 11123202172.

The previous prime is 11123202151. The next prime is 11123202191. The reversal of 11123202173 is 37120232111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9845997529 + 1277204644 = 99227^2 + 35738^2 .

It is an emirp because it is prime and its reverse (37120232111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11123202173 - 2¹⁶ = 11123136637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11123202113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5561601086 + 5561601087.

It is an arithmetic number, because the mean of its divisors is an integer number (5561601087).

Almost surely, 2^11123202173 is an apocalyptic number.

It is an amenable number.

11123202173 is a deficient number, since it is larger than the sum of its proper divisors (1).

11123202173 is an equidigital number, since it uses as much as digits as its factorization.

11123202173 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 23.

Adding to 11123202173 its reverse (37120232111), we get a palindrome (48243434284).

The spelling of 11123202173 in words is "eleven billion, one hundred twenty-three million, two hundred two thousand, one hundred seventy-three".