1123628017 has 2 divisors, whose sum is σ = 1123628018. Its totient is φ = 1123628016.

The previous prime is 1123627957. The next prime is 1123628041. The reversal of 1123628017 is 7108263211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1113490161 + 10137856 = 33369^2 + 3184^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1123628017 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1123628017.

It is not a weakly prime, because it can be changed into another prime (1123628047) 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, 561814008 + 561814009.

It is an arithmetic number, because the mean of its divisors is an integer number (561814009).

Almost surely, 2^1123628017 is an apocalyptic number.

It is an amenable number.

1123628017 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123628017 is an equidigital number, since it uses as much as digits as its factorization.

1123628017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 1123628017 is about 33520.5611080722. The cubic root of 1123628017 is about 1039.6189484808.

The spelling of 1123628017 in words is "one billion, one hundred twenty-three million, six hundred twenty-eight thousand, seventeen".