14161420421 has 4 divisors (see below), whose sum is σ = 14162144832. Its totient is φ = 14160696012.

The previous prime is 14161420397. The next prime is 14161420433. The reversal of 14161420421 is 12402416141.

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: 12402416141 = 349 ⋅35537009.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14161420421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14161423421) 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, 332045 + ... + 372258.

It is an arithmetic number, because the mean of its divisors is an integer number (3540536208).

Almost surely, 2^14161420421 is an apocalyptic number.

It is an amenable number.

14161420421 is a deficient number, since it is larger than the sum of its proper divisors (724411).

14161420421 is an equidigital number, since it uses as much as digits as its factorization.

14161420421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 724410.

The product of its (nonzero) digits is 1536, while the sum is 26.

Adding to 14161420421 its reverse (12402416141), we get a palindrome (26563836562).

The spelling of 14161420421 in words is "fourteen billion, one hundred sixty-one million, four hundred twenty thousand, four hundred twenty-one".