104021503 has 2 divisors, whose sum is σ = 104021504. Its totient is φ = 104021502.

The previous prime is 104021473. The next prime is 104021507. The reversal of 104021503 is 305120401.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 104021503 - 2¹⁷ = 103890431 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (104021507) 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, 52010751 + 52010752.

It is an arithmetic number, because the mean of its divisors is an integer number (52010752).

Almost surely, 2^104021503 is an apocalyptic number.

104021503 is a deficient number, since it is larger than the sum of its proper divisors (1).

104021503 is an equidigital number, since it uses as much as digits as its factorization.

104021503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 104021503 is about 10199.0932440095. The cubic root of 104021503 is about 470.2993460477.

Adding to 104021503 its reverse (305120401), we get a palindrome (409141904).

The spelling of 104021503 in words is "one hundred four million, twenty-one thousand, five hundred three".