13503252231203 has 6 divisors (see below), whose sum is σ = 15707864840436. Its totient is φ = 11574216198132.

The previous prime is 13503252231193. The next prime is 13503252231229. The reversal of 13503252231203 is 30213225230531.

13503252231203 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13503252231203 - 2⁴ = 13503252231187 is a prime.

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 13503252231203.

It is not an unprimeable number, because it can be changed into a prime (13503252231103) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 137788288025 + ... + 137788288122.

It is an arithmetic number, because the mean of its divisors is an integer number (2617977473406).

Almost surely, 2^{13503252231203} is an apocalyptic number.

13503252231203 is a deficient number, since it is larger than the sum of its proper divisors (2204612609233).

13503252231203 is an equidigital number, since it uses as much as digits as its factorization.

13503252231203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275576576161 (or 275576576154 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 32.

Adding to 13503252231203 its reverse (30213225230531), we get a palindrome (43716477461734).

The spelling of 13503252231203 in words is "thirteen trillion, five hundred three billion, two hundred fifty-two million, two hundred thirty-one thousand, two hundred three".