14530203421 has 2 divisors, whose sum is σ = 14530203422. Its totient is φ = 14530203420.

The previous prime is 14530203419. The next prime is 14530203451. The reversal of 14530203421 is 12430203541.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14523624196 + 6579225 = 120514^2 + 2565^2 .

It is a cyclic number.

It is not a de Polignac number, because 14530203421 - 2¹ = 14530203419 is a prime.

It is a super-2 number, since 2×14530203421² (a number of 21 digits) contains 22 as substring.

Together with 14530203419, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14530203451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7265101710 + 7265101711.

It is an arithmetic number, because the mean of its divisors is an integer number (7265101711).

Almost surely, 2^14530203421 is an apocalyptic number.

It is an amenable number.

14530203421 is a deficient number, since it is larger than the sum of its proper divisors (1).

14530203421 is an equidigital number, since it uses as much as digits as its factorization.

14530203421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 14530203421 its reverse (12430203541), we get a palindrome (26960406962).

The spelling of 14530203421 in words is "fourteen billion, five hundred thirty million, two hundred three thousand, four hundred twenty-one".