1121003003243 has 2 divisors, whose sum is σ = 1121003003244. Its totient is φ = 1121003003242.

The previous prime is 1121003003213. The next prime is 1121003003251. The reversal of 1121003003243 is 3423003001211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1121003003243 - 2¹⁰ = 1121003002219 is a prime.

It is not a weakly prime, because it can be changed into another prime (1121003003213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560501501621 + 560501501622.

It is an arithmetic number, because the mean of its divisors is an integer number (560501501622).

Almost surely, 2^{1121003003243} is an apocalyptic number.

1121003003243 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121003003243 is an equidigital number, since it uses as much as digits as its factorization.

1121003003243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 1121003003243 its reverse (3423003001211), we get a palindrome (4544006004454).

The spelling of 1121003003243 in words is "one trillion, one hundred twenty-one billion, three million, three thousand, two hundred forty-three".