12420341430 has 64 divisors (see below), whose sum is σ = 34142031360. Its totient is φ = 2832701184.

The previous prime is 12420341419. The next prime is 12420341431. The reversal of 12420341430 is 3414302421.

It is a self number, because there is not a number n which added to its sum of digits gives 12420341430.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12420341431) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31261 + ... + 160679.

It is an arithmetic number, because the mean of its divisors is an integer number (533469240).

Almost surely, 2^12420341430 is an apocalyptic number.

12420341430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12420341430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17071015680).

12420341430 is an abundant number, since it is smaller than the sum of its proper divisors (21721689930).

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

12420341430 is a wasteful number, since it uses less digits than its factorization.

12420341430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129893.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 12420341430 its reverse (3414302421), we get a palindrome (15834643851).

The spelling of 12420341430 in words is "twelve billion, four hundred twenty million, three hundred forty-one thousand, four hundred thirty".