12420304043 has 4 divisors (see below), whose sum is σ = 14194633200. Its totient is φ = 10645974888.

The previous prime is 12420303979. The next prime is 12420304067. The reversal of 12420304043 is 34040302421.

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

It is a cyclic number.

It is not a de Polignac number, because 12420304043 - 2⁶ = 12420303979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12420304073) 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, 887164568 + ... + 887164581.

It is an arithmetic number, because the mean of its divisors is an integer number (3548658300).

Almost surely, 2^12420304043 is an apocalyptic number.

12420304043 is a deficient number, since it is larger than the sum of its proper divisors (1774329157).

12420304043 is an equidigital number, since it uses as much as digits as its factorization.

12420304043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1774329156.

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

Adding to 12420304043 its reverse (34040302421), we get a palindrome (46460606464).

The spelling of 12420304043 in words is "twelve billion, four hundred twenty million, three hundred four thousand, forty-three".