1123256677 has 2 divisors, whose sum is σ = 1123256678. Its totient is φ = 1123256676.

The previous prime is 1123256669. The next prime is 1123256737. The reversal of 1123256677 is 7766523211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1104299361 + 18957316 = 33231^2 + 4354^2 .

It is a cyclic number.

It is not a de Polignac number, because 1123256677 - 2³ = 1123256669 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1123256627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561628338 + 561628339.

It is an arithmetic number, because the mean of its divisors is an integer number (561628339).

Almost surely, 2^1123256677 is an apocalyptic number.

It is an amenable number.

1123256677 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123256677 is an equidigital number, since it uses as much as digits as its factorization.

1123256677 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 105840, while the sum is 40.

The square root of 1123256677 is about 33515.0216619354. The cubic root of 1123256677 is about 1039.5044103863.

Adding to 1123256677 its reverse (7766523211), we get a palindrome (8889779888).

The spelling of 1123256677 in words is "one billion, one hundred twenty-three million, two hundred fifty-six thousand, six hundred seventy-seven".