13161323 has 4 divisors (see below), whose sum is σ = 15041520. Its totient is φ = 11281128.

The previous prime is 13161301. The next prime is 13161347. The reversal of 13161323 is 32316131.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32316131 = 19 ⋅1700849.

It is a cyclic number.

It is not a de Polignac number, because 13161323 - 2⁸ = 13161067 is a prime.

It is a super-2 number, since 2×13161323² = 346440846220658, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13161295 and 13161304.

It is not an unprimeable number, because it can be changed into a prime (13161023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 940088 + ... + 940101.

It is an arithmetic number, because the mean of its divisors is an integer number (3760380).

Almost surely, 2^13161323 is an apocalyptic number.

13161323 is a deficient number, since it is larger than the sum of its proper divisors (1880197).

13161323 is an equidigital number, since it uses as much as digits as its factorization.

13161323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1880196.

The product of its digits is 324, while the sum is 20.

The square root of 13161323 is about 3627.8537732384. The cubic root of 13161323 is about 236.1020996033.

Adding to 13161323 its reverse (32316131), we get a palindrome (45477454).

The spelling of 13161323 in words is "thirteen million, one hundred sixty-one thousand, three hundred twenty-three".