1121302289 has 2 divisors, whose sum is σ = 1121302290. Its totient is φ = 1121302288.

The previous prime is 1121302267. The next prime is 1121302349. The reversal of 1121302289 is 9822031211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1078005889 + 43296400 = 32833^2 + 6580^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1121302289 is a prime.

It is not a weakly prime, because it can be changed into another prime (1121302489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560651144 + 560651145.

It is an arithmetic number, because the mean of its divisors is an integer number (560651145).

Almost surely, 2^1121302289 is an apocalyptic number.

It is an amenable number.

1121302289 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121302289 is an equidigital number, since it uses as much as digits as its factorization.

1121302289 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 1121302289 is about 33485.8520721812. The cubic root of 1121302289 is about 1038.9011720808.

The spelling of 1121302289 in words is "one billion, one hundred twenty-one million, three hundred two thousand, two hundred eighty-nine".