1123345673 has 2 divisors, whose sum is σ = 1123345674. Its totient is φ = 1123345672.

The previous prime is 1123345627. The next prime is 1123345687. The reversal of 1123345673 is 3765433211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1073741824 + 49603849 = 32768^2 + 7043^2 .

It is a cyclic number.

It is not a de Polignac number, because 1123345673 - 2¹⁴ = 1123329289 is a prime.

It is not a weakly prime, because it can be changed into another prime (1123345603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561672836 + 561672837.

It is an arithmetic number, because the mean of its divisors is an integer number (561672837).

Almost surely, 2^1123345673 is an apocalyptic number.

It is an amenable number.

1123345673 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123345673 is an equidigital number, since it uses as much as digits as its factorization.

1123345673 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45360, while the sum is 35.

The square root of 1123345673 is about 33516.3493387929. The cubic root of 1123345673 is about 1039.5318630880.

Adding to 1123345673 its reverse (3765433211), we get a palindrome (4888778884).

The spelling of 1123345673 in words is "one billion, one hundred twenty-three million, three hundred forty-five thousand, six hundred seventy-three".