13103125543 has 4 divisors (see below), whose sum is σ = 13103366760. Its totient is φ = 13102884328.

The previous prime is 13103125501. The next prime is 13103125603. The reversal of 13103125543 is 34552130131.

It is a happy number.

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 13103125543 - 2³³ = 4513190951 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 (13103125843) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3321 + ... + 161917.

It is an arithmetic number, because the mean of its divisors is an integer number (3275841690).

Almost surely, 2^13103125543 is an apocalyptic number.

13103125543 is a deficient number, since it is larger than the sum of its proper divisors (241217).

13103125543 is an equidigital number, since it uses as much as digits as its factorization.

13103125543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241216.

The product of its (nonzero) digits is 5400, while the sum is 28.

Adding to 13103125543 its reverse (34552130131), we get a palindrome (47655255674).

The spelling of 13103125543 in words is "thirteen billion, one hundred three million, one hundred twenty-five thousand, five hundred forty-three".