2113504503 has 16 divisors (see below), whose sum is σ = 3075042432. Its totient is φ = 1280556000.

The previous prime is 2113504493. The next prime is 2113504511. The reversal of 2113504503 is 3054053112.

It is not a de Polignac number, because 2113504503 - 2⁹ = 2113503991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2113504403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 158973 + ... + 171753.

It is an arithmetic number, because the mean of its divisors is an integer number (192190152).

Almost surely, 2^2113504503 is an apocalyptic number.

2113504503 is a deficient number, since it is larger than the sum of its proper divisors (961537929).

2113504503 is a wasteful number, since it uses less digits than its factorization.

2113504503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17806.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 2113504503 is about 45972.8670304561. The cubic root of 2113504503 is about 1283.3183153056.

Adding to 2113504503 its reverse (3054053112), we get a palindrome (5167557615).

The spelling of 2113504503 in words is "two billion, one hundred thirteen million, five hundred four thousand, five hundred three".