13125302105503 has 16 divisors (see below), whose sum is σ = 15486021529600. Its totient is φ = 10886085849600.

The previous prime is 13125302105501. The next prime is 13125302105519. The reversal of 13125302105503 is 30550120352131.

It is a cyclic number.

It is not a de Polignac number, because 13125302105503 - 2¹ = 13125302105501 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13125302105501) 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, 1624803 + ... + 5374996.

It is an arithmetic number, because the mean of its divisors is an integer number (967876345600).

Almost surely, 2^{13125302105503} is an apocalyptic number.

13125302105503 is a deficient number, since it is larger than the sum of its proper divisors (2360719424097).

13125302105503 is an equidigital number, since it uses as much as digits as its factorization.

13125302105503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7008478.

The product of its (nonzero) digits is 13500, while the sum is 31.

Adding to 13125302105503 its reverse (30550120352131), we get a palindrome (43675422457634).

The spelling of 13125302105503 in words is "thirteen trillion, one hundred twenty-five billion, three hundred two million, one hundred five thousand, five hundred three".