13041321 has 16 divisors (see below), whose sum is σ = 17928960. Its totient is φ = 8426880.

The previous prime is 13041313. The next prime is 13041323. The reversal of 13041321 is 12314031.

It is not a de Polignac number, because 13041321 - 2³ = 13041313 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13041321.

It is not an unprimeable number, because it can be changed into a prime (13041323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27936 + ... + 28398.

It is an arithmetic number, because the mean of its divisors is an integer number (1120560).

Almost surely, 2^13041321 is an apocalyptic number.

It is an amenable number.

13041321 is a deficient number, since it is larger than the sum of its proper divisors (4887639).

13041321 is a wasteful number, since it uses less digits than its factorization.

13041321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 736.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 13041321 is about 3611.2769209796. The cubic root of 13041321 is about 235.3823322087.

Adding to 13041321 its reverse (12314031), we get a palindrome (25355352).

The spelling of 13041321 in words is "thirteen million, forty-one thousand, three hundred twenty-one".