1123230089 has 2 divisors, whose sum is σ = 1123230090. Its totient is φ = 1123230088.

The previous prime is 1123230083. The next prime is 1123230091. The reversal of 1123230089 is 9800323211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 639230089 + 484000000 = 25283^2 + 22000^2 .

It is a cyclic number.

It is not a de Polignac number, because 1123230089 - 2²⁴ = 1106452873 is a prime.

Together with 1123230091, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1123230083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561615044 + 561615045.

It is an arithmetic number, because the mean of its divisors is an integer number (561615045).

Almost surely, 2^1123230089 is an apocalyptic number.

It is an amenable number.

1123230089 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123230089 is an equidigital number, since it uses as much as digits as its factorization.

1123230089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 1123230089 is about 33514.6250016318. The cubic root of 1123230089 is about 1039.4962084731.

The spelling of 1123230089 in words is "one billion, one hundred twenty-three million, two hundred thirty thousand, eighty-nine".