14201323421 has 4 divisors (see below), whose sum is σ = 14395862172. Its totient is φ = 14006784672.

The previous prime is 14201323393. The next prime is 14201323429. The reversal of 14201323421 is 12432310241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12432310241 = 13 ⋅956331557.

It can be written as a sum of positive squares in 2 ways, for example, as 9449978521 + 4751344900 = 97211^2 + 68930^2 .

It is a cyclic number.

It is not a de Polignac number, because 14201323421 - 2²⁶ = 14134214557 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 (14201323429) 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, 97269266 + ... + 97269411.

It is an arithmetic number, because the mean of its divisors is an integer number (3598965543).

Almost surely, 2^14201323421 is an apocalyptic number.

It is an amenable number.

14201323421 is a deficient number, since it is larger than the sum of its proper divisors (194538751).

14201323421 is an equidigital number, since it uses as much as digits as its factorization.

14201323421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194538750.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 14201323421 its reverse (12432310241), we get a palindrome (26633633662).

The spelling of 14201323421 in words is "fourteen billion, two hundred one million, three hundred twenty-three thousand, four hundred twenty-one".