13311323 has 4 divisors (see below), whose sum is σ = 14094360. Its totient is φ = 12528288.

The previous prime is 13311317. The next prime is 13311349. The reversal of 13311323 is 32311331.

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 13311323 - 2¹² = 13307227 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 783019 = 13311323 / (1 + 3 + 3 + 1 + 1 + 3 + 2 + 3).

It is not an unprimeable number, because it can be changed into a prime (13311313) 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, 391493 + ... + 391526.

It is an arithmetic number, because the mean of its divisors is an integer number (3523590).

Almost surely, 2^13311323 is an apocalyptic number.

13311323 is a deficient number, since it is larger than the sum of its proper divisors (783037).

13311323 is an equidigital number, since it uses as much as digits as its factorization.

13311323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 783036.

The product of its digits is 162, while the sum is 17.

The square root of 13311323 is about 3648.4685828440. The cubic root of 13311323 is about 236.9956677566.

Adding to 13311323 its reverse (32311331), we get a palindrome (45622654).

The spelling of 13311323 in words is "thirteen million, three hundred eleven thousand, three hundred twenty-three".