503420330042989 has 2 divisors, whose sum is σ = 503420330042990. Its totient is φ = 503420330042988.

The previous prime is 503420330042957. The next prime is 503420330043053. The reversal of 503420330042989 is 989240033024305.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 495204465176100 + 8215864866889 = 22253190^2 + 2866333^2 .

It is a cyclic number.

It is not a de Polignac number, because 503420330042989 - 2⁵ = 503420330042957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (503420330042909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 251710165021494 + 251710165021495.

It is an arithmetic number, because the mean of its divisors is an integer number (251710165021495).

Almost surely, 2^{503420330042989} is an apocalyptic number.

It is an amenable number.

503420330042989 is a deficient number, since it is larger than the sum of its proper divisors (1).

503420330042989 is an equidigital number, since it uses as much as digits as its factorization.

503420330042989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5598720, while the sum is 52.

The spelling of 503420330042989 in words is "five hundred three trillion, four hundred twenty billion, three hundred thirty million, forty-two thousand, nine hundred eighty-nine".