14453203421 has 4 divisors (see below), whose sum is σ = 14690141244. Its totient is φ = 14216265600.

The previous prime is 14453203417. The next prime is 14453203433. The reversal of 14453203421 is 12430235441.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6526862521 + 7926340900 = 80789^2 + 89030^2 .

It is a cyclic number.

It is not a de Polignac number, because 14453203421 - 2² = 14453203417 is a prime.

It is a super-2 number, since 2×14453203421² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14453203411) 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, 118468820 + ... + 118468941.

It is an arithmetic number, because the mean of its divisors is an integer number (3672535311).

Almost surely, 2^14453203421 is an apocalyptic number.

It is an amenable number.

14453203421 is a deficient number, since it is larger than the sum of its proper divisors (236937823).

14453203421 is an equidigital number, since it uses as much as digits as its factorization.

14453203421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236937822.

The product of its (nonzero) digits is 11520, while the sum is 29.

Adding to 14453203421 its reverse (12430235441), we get a palindrome (26883438862).

The spelling of 14453203421 in words is "fourteen billion, four hundred fifty-three million, two hundred three thousand, four hundred twenty-one".