13320355 has 4 divisors (see below), whose sum is σ = 15984432. Its totient is φ = 10656280.

The previous prime is 13320353. The next prime is 13320361. The reversal of 13320355 is 55302331.

It is a happy number.

13320355 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 13320355 - 2¹ = 13320353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13320353) 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, 1332031 + ... + 1332040.

It is an arithmetic number, because the mean of its divisors is an integer number (3996108).

Almost surely, 2^13320355 is an apocalyptic number.

13320355 is a deficient number, since it is larger than the sum of its proper divisors (2664077).

13320355 is an equidigital number, since it uses as much as digits as its factorization.

13320355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2664076.

The product of its (nonzero) digits is 1350, while the sum is 22.

The square root of 13320355 is about 3649.7061525553. The cubic root of 13320355 is about 237.0492577446.

Adding to 13320355 its reverse (55302331), we get a palindrome (68622686).

The spelling of 13320355 in words is "thirteen million, three hundred twenty thousand, three hundred fifty-five".