130003503 has 16 divisors (see below), whose sum is σ = 199530240. Its totient is φ = 73751616.

The previous prime is 130003501. The next prime is 130003507. The reversal of 130003503 is 305300031.

It is not a de Polignac number, because 130003503 - 2¹ = 130003501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130003501) 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 in 15 ways as a sum of consecutive naturals, for example, 19350 + ... + 25187.

It is an arithmetic number, because the mean of its divisors is an integer number (12470640).

Almost surely, 2^130003503 is an apocalyptic number.

130003503 is a deficient number, since it is larger than the sum of its proper divisors (69526737).

130003503 is a wasteful number, since it uses less digits than its factorization.

130003503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44686.

The product of its (nonzero) digits is 135, while the sum is 15.

The square root of 130003503 is about 11401.9078666686. The cubic root of 130003503 is about 506.5842519941.

Adding to 130003503 its reverse (305300031), we get a palindrome (435303534).

The spelling of 130003503 in words is "one hundred thirty million, three thousand, five hundred three".