1303403444489 has 2 divisors, whose sum is σ = 1303403444490. Its totient is φ = 1303403444488.

The previous prime is 1303403444449. The next prime is 1303403444509. The reversal of 1303403444489 is 9844443043031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1090545781264 + 212857663225 = 1044292^2 + 461365^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1303403444489 is a prime.

It is a super-2 number, since 2×1303403444489² (a number of 25 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1303403444429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 651701722244 + 651701722245.

It is an arithmetic number, because the mean of its divisors is an integer number (651701722245).

Almost surely, 2^{1303403444489} is an apocalyptic number.

It is an amenable number.

1303403444489 is a deficient number, since it is larger than the sum of its proper divisors (1).

1303403444489 is an equidigital number, since it uses as much as digits as its factorization.

1303403444489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1990656, while the sum is 47.

The spelling of 1303403444489 in words is "one trillion, three hundred three billion, four hundred three million, four hundred forty-four thousand, four hundred eighty-nine".