12420030443 has 16 divisors (see below), whose sum is σ = 12713500800. Its totient is φ = 12130752000.

The previous prime is 12420030439. The next prime is 12420030451. The reversal of 12420030443 is 34403002421.

It is a cyclic number.

It is not a de Polignac number, because 12420030443 - 2² = 12420030439 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12420038443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2893643 + ... + 2897931.

It is an arithmetic number, because the mean of its divisors is an integer number (794593800).

Almost surely, 2^12420030443 is an apocalyptic number.

12420030443 is a deficient number, since it is larger than the sum of its proper divisors (293470357).

12420030443 is a wasteful number, since it uses less digits than its factorization.

12420030443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4762.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 12420030443 its reverse (34403002421), we get a palindrome (46823032864).

The spelling of 12420030443 in words is "twelve billion, four hundred twenty million, thirty thousand, four hundred forty-three".