503420123363149 has 2 divisors, whose sum is σ = 503420123363150. Its totient is φ = 503420123363148.

The previous prime is 503420123363147. The next prime is 503420123363189. The reversal of 503420123363149 is 941363321024305.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 500878633781124 + 2541489582025 = 22380318^2 + 1594205^2 .

It is a cyclic number.

It is not a de Polignac number, because 503420123363149 - 2¹ = 503420123363147 is a prime.

Together with 503420123363147, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 503420123363099 and 503420123363108.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (503420123363147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 251710061681574 + 251710061681575.

It is an arithmetic number, because the mean of its divisors is an integer number (251710061681575).

Almost surely, 2^{503420123363149} is an apocalyptic number.

It is an amenable number.

503420123363149 is a deficient number, since it is larger than the sum of its proper divisors (1).

503420123363149 is an equidigital number, since it uses as much as digits as its factorization.

503420123363149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1399680, while the sum is 46.

The spelling of 503420123363149 in words is "five hundred three trillion, four hundred twenty billion, one hundred twenty-three million, three hundred sixty-three thousand, one hundred forty-nine".