1223103289 has 2 divisors, whose sum is σ = 1223103290. Its totient is φ = 1223103288.

The previous prime is 1223103281. The next prime is 1223103317. The reversal of 1223103289 is 9823013221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1129497664 + 93605625 = 33608^2 + 9675^2 .

It is a cyclic number.

It is not a de Polignac number, because 1223103289 - 2³ = 1223103281 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1223103289.

It is not a weakly prime, because it can be changed into another prime (1223103281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611551644 + 611551645.

It is an arithmetic number, because the mean of its divisors is an integer number (611551645).

Almost surely, 2^1223103289 is an apocalyptic number.

It is an amenable number.

1223103289 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223103289 is an equidigital number, since it uses as much as digits as its factorization.

1223103289 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 1223103289 is about 34972.8936320688. The cubic root of 1223103289 is about 1069.4349621017.

The spelling of 1223103289 in words is "one billion, two hundred twenty-three million, one hundred three thousand, two hundred eighty-nine".