13503001123 has 4 divisors (see below), whose sum is σ = 13570855600. Its totient is φ = 13435146648.

The previous prime is 13503001117. The next prime is 13503001151. The reversal of 13503001123 is 32110030531.

13503001123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13503001123 - 2⁵ = 13503001091 is a prime.

It is a super-2 number, since 2×13503001123² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13503001123.

It is not an unprimeable number, because it can be changed into a prime (13503061123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33926940 + ... + 33927337.

It is an arithmetic number, because the mean of its divisors is an integer number (3392713900).

Almost surely, 2^13503001123 is an apocalyptic number.

13503001123 is a deficient number, since it is larger than the sum of its proper divisors (67854477).

13503001123 is an equidigital number, since it uses as much as digits as its factorization.

13503001123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67854476.

The product of its (nonzero) digits is 270, while the sum is 19.

Adding to 13503001123 its reverse (32110030531), we get a palindrome (45613031654).

The spelling of 13503001123 in words is "thirteen billion, five hundred three million, one thousand, one hundred twenty-three".