51003039103 has 2 divisors, whose sum is σ = 51003039104. Its totient is φ = 51003039102.

The previous prime is 51003039089. The next prime is 51003039133. The reversal of 51003039103 is 30193030015.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51003039103 - 2³³ = 42413104511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51003039133) 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, 25501519551 + 25501519552.

It is an arithmetic number, because the mean of its divisors is an integer number (25501519552).

Almost surely, 2^51003039103 is an apocalyptic number.

51003039103 is a deficient number, since it is larger than the sum of its proper divisors (1).

51003039103 is an equidigital number, since it uses as much as digits as its factorization.

51003039103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1215, while the sum is 25.

Adding to 51003039103 its reverse (30193030015), we get a palindrome (81196069118).

The spelling of 51003039103 in words is "fifty-one billion, three million, thirty-nine thousand, one hundred three".