13063421 has 4 divisors (see below), whose sum is σ = 14929632. Its totient is φ = 11197212.

The previous prime is 13063417. The next prime is 13063433. The reversal of 13063421 is 12436031.

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, and also an emirpimes, since its reverse is a distinct semiprime: 12436031 = 23 ⋅540697.

It is a cyclic number.

It is not a de Polignac number, because 13063421 - 2² = 13063417 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13063393 and 13063402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13063411) 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, 933095 + ... + 933108.

It is an arithmetic number, because the mean of its divisors is an integer number (3732408).

Almost surely, 2^13063421 is an apocalyptic number.

It is an amenable number.

13063421 is a deficient number, since it is larger than the sum of its proper divisors (1866211).

13063421 is an equidigital number, since it uses as much as digits as its factorization.

13063421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1866210.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 13063421 is about 3614.3354852587. The cubic root of 13063421 is about 235.5152178746.

Adding to 13063421 its reverse (12436031), we get a palindrome (25499452).

The spelling of 13063421 in words is "thirteen million, sixty-three thousand, four hundred twenty-one".