13041421 has 4 divisors (see below), whose sum is σ = 13462144. Its totient is φ = 12620700.

The previous prime is 13041407. The next prime is 13041433. The reversal of 13041421 is 12414031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13041421 - 2⁷ = 13041293 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13041395 and 13041404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13041401) 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, 210315 + ... + 210376.

It is an arithmetic number, because the mean of its divisors is an integer number (3365536).

Almost surely, 2^13041421 is an apocalyptic number.

It is an amenable number.

13041421 is a deficient number, since it is larger than the sum of its proper divisors (420723).

13041421 is an equidigital number, since it uses as much as digits as its factorization.

13041421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420722.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 13041421 is about 3611.2907664712. The cubic root of 13041421 is about 235.3829338393.

Adding to 13041421 its reverse (12414031), we get a palindrome (25455452).

The spelling of 13041421 in words is "thirteen million, forty-one thousand, four hundred twenty-one".