12430203421 has 24 divisors (see below), whose sum is σ = 13285643616. Its totient is φ = 11626058400.

The previous prime is 12430203353. The next prime is 12430203433.

12430203421 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 12430203421 - 2⁹ = 12430202909 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12430203392 and 12430203401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12430203221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4433206 + ... + 4436008.

It is an arithmetic number, because the mean of its divisors is an integer number (553568484).

Almost surely, 2^12430203421 is an apocalyptic number.

It is an amenable number.

12430203421 is a deficient number, since it is larger than the sum of its proper divisors (855440195).

12430203421 is a wasteful number, since it uses less digits than its factorization.

12430203421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3033 (or 3010 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The spelling of 12430203421 in words is "twelve billion, four hundred thirty million, two hundred three thousand, four hundred twenty-one".