1123239773 has 2 divisors, whose sum is σ = 1123239774. Its totient is φ = 1123239772.

The previous prime is 1123239763. The next prime is 1123239797. The reversal of 1123239773 is 3779323211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1031501689 + 91738084 = 32117^2 + 9578^2 .

It is an emirp because it is prime and its reverse (3779323211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1123239773 - 2⁴ = 1123239757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1123239713) 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, 561619886 + 561619887.

It is an arithmetic number, because the mean of its divisors is an integer number (561619887).

Almost surely, 2^1123239773 is an apocalyptic number.

It is an amenable number.

1123239773 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123239773 is an equidigital number, since it uses as much as digits as its factorization.

1123239773 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 47628, while the sum is 38.

The square root of 1123239773 is about 33514.7694755611. The cubic root of 1123239773 is about 1039.4991958255.

The spelling of 1123239773 in words is "one billion, one hundred twenty-three million, two hundred thirty-nine thousand, seven hundred seventy-three".