13181101 has 4 divisors (see below), whose sum is σ = 13250304. Its totient is φ = 13111900.

The previous prime is 13181083. The next prime is 13181123. The reversal of 13181101 is 10118131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13181101 - 2⁹ = 13180589 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 (13181401) 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, 34315 + ... + 34696.

It is an arithmetic number, because the mean of its divisors is an integer number (3312576).

Almost surely, 2^13181101 is an apocalyptic number.

It is an amenable number.

13181101 is a deficient number, since it is larger than the sum of its proper divisors (69203).

13181101 is an equidigital number, since it uses as much as digits as its factorization.

13181101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69202.

The product of its (nonzero) digits is 24, while the sum is 16.

The square root of 13181101 is about 3630.5786040244. The cubic root of 13181101 is about 236.2203068231.

Adding to 13181101 its reverse (10118131), we get a palindrome (23299232).

The spelling of 13181101 in words is "thirteen million, one hundred eighty-one thousand, one hundred one".