1211303002303 has 2 divisors, whose sum is σ = 1211303002304. Its totient is φ = 1211303002302.

The previous prime is 1211303002291. The next prime is 1211303002373. The reversal of 1211303002303 is 3032003031121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1211303002303 - 2⁵ = 1211303002271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1211303002373) 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, 605651501151 + 605651501152.

It is an arithmetic number, because the mean of its divisors is an integer number (605651501152).

Almost surely, 2^{1211303002303} is an apocalyptic number.

1211303002303 is a deficient number, since it is larger than the sum of its proper divisors (1).

1211303002303 is an equidigital number, since it uses as much as digits as its factorization.

1211303002303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 1211303002303 its reverse (3032003031121), we get a palindrome (4243306033424).

The spelling of 1211303002303 in words is "one trillion, two hundred eleven billion, three hundred three million, two thousand, three hundred three".