13161103 has 4 divisors (see below), whose sum is σ = 13240080. Its totient is φ = 13082128.

The previous prime is 13161079. The next prime is 13161121. The reversal of 13161103 is 30116131.

13161103 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, and also an emirpimes, since its reverse is a distinct semiprime: 30116131 = 23 ⋅1309397.

It is a cyclic number.

It is not a de Polignac number, because 13161103 - 2⁹ = 13160591 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 (13161133) 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, 39238 + ... + 39571.

It is an arithmetic number, because the mean of its divisors is an integer number (3310020).

Almost surely, 2^13161103 is an apocalyptic number.

13161103 is a deficient number, since it is larger than the sum of its proper divisors (78977).

13161103 is an equidigital number, since it uses as much as digits as its factorization.

13161103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78976.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 13161103 is about 3627.8234521542. The cubic root of 13161103 is about 236.1007840630.

Adding to 13161103 its reverse (30116131), we get a palindrome (43277234).

The spelling of 13161103 in words is "thirteen million, one hundred sixty-one thousand, one hundred three".