13109323 has 2 divisors, whose sum is σ = 13109324. Its totient is φ = 13109322.

The previous prime is 13109309. The next prime is 13109347. The reversal of 13109323 is 32390131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13109323 - 2⁹ = 13108811 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13109294 and 13109303.

It is not a weakly prime, because it can be changed into another prime (13109303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6554661 + 6554662.

It is an arithmetic number, because the mean of its divisors is an integer number (6554662).

Almost surely, 2^13109323 is an apocalyptic number.

13109323 is a deficient number, since it is larger than the sum of its proper divisors (1).

13109323 is an equidigital number, since it uses as much as digits as its factorization.

13109323 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 486, while the sum is 22.

The square root of 13109323 is about 3620.6799085255. The cubic root of 13109323 is about 235.7907450416.

Adding to 13109323 its reverse (32390131), we get a palindrome (45499454).

The spelling of 13109323 in words is "thirteen million, one hundred nine thousand, three hundred twenty-three".