12143002420 has 24 divisors (see below), whose sum is σ = 27000323784. Its totient is φ = 4571483136.

The previous prime is 12143002411. The next prime is 12143002451. The reversal of 12143002420 is 2420034121.

12143002420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 703416484 + 11439585936 = 26522^2 + 106956^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17857017 + ... + 17857696.

It is an arithmetic number, because the mean of its divisors is an integer number (1125013491).

Almost surely, 2^12143002420 is an apocalyptic number.

12143002420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12143002420 is an abundant number, since it is smaller than the sum of its proper divisors (14857321364).

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

12143002420 is a wasteful number, since it uses less digits than its factorization.

12143002420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35714739 (or 35714737 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 12143002420 its reverse (2420034121), we get a palindrome (14563036541).

The spelling of 12143002420 in words is "twelve billion, one hundred forty-three million, two thousand, four hundred twenty".