13420214421 has 4 divisors (see below), whose sum is σ = 17893619232. Its totient is φ = 8946809612.

The previous prime is 13420214383. The next prime is 13420214567. The reversal of 13420214421 is 12441202431.

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 13420214421 - 2¹⁴ = 13420198037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13420214391 and 13420214400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13420214921) 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, 2236702401 + ... + 2236702406.

It is an arithmetic number, because the mean of its divisors is an integer number (4473404808).

Almost surely, 2^13420214421 is an apocalyptic number.

It is an amenable number.

13420214421 is a deficient number, since it is larger than the sum of its proper divisors (4473404811).

13420214421 is an equidigital number, since it uses as much as digits as its factorization.

13420214421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4473404810.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 13420214421 its reverse (12441202431), we get a palindrome (25861416852).

The spelling of 13420214421 in words is "thirteen billion, four hundred twenty million, two hundred fourteen thousand, four hundred twenty-one".