1031203321063 has 2 divisors, whose sum is σ = 1031203321064. Its totient is φ = 1031203321062.

The previous prime is 1031203321039. The next prime is 1031203321151. The reversal of 1031203321063 is 3601233021301.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1031203321063 - 2¹³ = 1031203312871 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1031203321013) 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, 515601660531 + 515601660532.

It is an arithmetic number, because the mean of its divisors is an integer number (515601660532).

Almost surely, 2^{1031203321063} is an apocalyptic number.

1031203321063 is a deficient number, since it is larger than the sum of its proper divisors (1).

1031203321063 is an equidigital number, since it uses as much as digits as its factorization.

1031203321063 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 1031203321063 its reverse (3601233021301), we get a palindrome (4632436342364).

The spelling of 1031203321063 in words is "one trillion, thirty-one billion, two hundred three million, three hundred twenty-one thousand, sixty-three".