13220323 has 8 divisors (see below), whose sum is σ = 13482000. Its totient is φ = 12961248.

The previous prime is 13220309. The next prime is 13220329. The reversal of 13220323 is 32302231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13220323 - 2¹³ = 13212131 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13220297 and 13220306.

It is not an unprimeable number, because it can be changed into a prime (13220329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11833 + ... + 12901.

It is an arithmetic number, because the mean of its divisors is an integer number (1685250).

Almost surely, 2^13220323 is an apocalyptic number.

13220323 is a deficient number, since it is larger than the sum of its proper divisors (261677).

13220323 is a wasteful number, since it uses less digits than its factorization.

13220323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1301.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 13220323 is about 3635.9762100432. The cubic root of 13220323 is about 236.4543757446.

Adding to 13220323 its reverse (32302231), we get a palindrome (45522554).

The spelling of 13220323 in words is "thirteen million, two hundred twenty thousand, three hundred twenty-three".