11003130503 has 8 divisors (see below), whose sum is σ = 11083767072. Its totient is φ = 10922669856.

The previous prime is 11003130493. The next prime is 11003130511. The reversal of 11003130503 is 30503130011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11003130503 - 2¹⁰ = 11003129479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11003130403) 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 7 ways as a sum of consecutive naturals, for example, 82901 + ... + 169937.

It is an arithmetic number, because the mean of its divisors is an integer number (1385470884).

Almost surely, 2^11003130503 is an apocalyptic number.

11003130503 is a deficient number, since it is larger than the sum of its proper divisors (80636569).

11003130503 is an equidigital number, since it uses as much as digits as its factorization.

11003130503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87961.

The product of its (nonzero) digits is 135, while the sum is 17.

Adding to 11003130503 its reverse (30503130011), we get a palindrome (41506260514).

The spelling of 11003130503 in words is "eleven billion, three million, one hundred thirty thousand, five hundred three".