1123329289 has 2 divisors, whose sum is σ = 1123329290. Its totient is φ = 1123329288.

The previous prime is 1123329283. The next prime is 1123329313. The reversal of 1123329289 is 9829233211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 681993225 + 441336064 = 26115^2 + 21008^2 .

It is a cyclic number.

It is not a de Polignac number, because 1123329289 - 2²⁹ = 586458377 is a prime.

It is not a weakly prime, because it can be changed into another prime (1123329283) 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, 561664644 + 561664645.

It is an arithmetic number, because the mean of its divisors is an integer number (561664645).

Almost surely, 2^1123329289 is an apocalyptic number.

It is an amenable number.

1123329289 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123329289 is an equidigital number, since it uses as much as digits as its factorization.

1123329289 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46656, while the sum is 40.

The square root of 1123329289 is about 33516.1049198740. The cubic root of 1123329289 is about 1039.5268092050.

The spelling of 1123329289 in words is "one billion, one hundred twenty-three million, three hundred twenty-nine thousand, two hundred eighty-nine".