12420020303430 has 32 divisors (see below), whose sum is σ = 29808292140000. Its totient is φ = 3311978368512.

The previous prime is 12420020303407. The next prime is 12420020303437. The reversal of 12420020303430 is 3430302002421.

It is a super-2 number, since 2×12420020303430² (a number of 27 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12420020303430.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12420020303437) 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, 2190736 + ... + 5444204.

It is an arithmetic number, because the mean of its divisors is an integer number (931509129375).

Almost surely, 2^{12420020303430} is an apocalyptic number.

12420020303430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12420020303430 is an abundant number, since it is smaller than the sum of its proper divisors (17388271836570).

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

12420020303430 is a wasteful number, since it uses less digits than its factorization.

12420020303430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3380728.

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 12420020303430 its reverse (3430302002421), we get a palindrome (15850322305851).

The spelling of 12420020303430 in words is "twelve trillion, four hundred twenty billion, twenty million, three hundred three thousand, four hundred thirty".