12430422020 has 12 divisors (see below), whose sum is σ = 26103886284. Its totient is φ = 4972168800.

The previous prime is 12430421953. The next prime is 12430422023. The reversal of 12430422020 is 2022403421.

It can be written as a sum of positive squares in 2 ways, for example, as 9586759744 + 2843662276 = 97912^2 + 53326^2 .

It is a super-4 number, since 4×12430422020⁴ (a number of 41 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 621521101 = 12430422020 / (1 + 2 + 4 + 3 + 0 + 4 + 2 + 2 + 0 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 12430421983 and 12430422001.

It is not an unprimeable number, because it can be changed into a prime (12430422023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 310760531 + ... + 310760570.

It is an arithmetic number, because the mean of its divisors is an integer number (2175323857).

Almost surely, 2^12430422020 is an apocalyptic number.

12430422020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12430422020 is an abundant number, since it is smaller than the sum of its proper divisors (13673464264).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12430422020 is a wasteful number, since it uses less digits than its factorization.

12430422020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 621521110 (or 621521108 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 12430422020 its reverse (2022403421), we get a palindrome (14452825441).

The spelling of 12430422020 in words is "twelve billion, four hundred thirty million, four hundred twenty-two thousand, twenty".