12143433540 has 96 divisors (see below), whose sum is σ = 41144834304. Its totient is φ = 2612367360.

The previous prime is 12143433529. The next prime is 12143433551. The reversal of 12143433540 is 4533434121.

12143433540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12143433529) and next prime (12143433551).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 12143433498 and 12143433507.

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 31 ways as a sum of consecutive naturals, for example, 843241 + ... + 857520.

It is an arithmetic number, because the mean of its divisors is an integer number (428592024).

Almost surely, 2^12143433540 is an apocalyptic number.

12143433540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12143433540 is an abundant number, since it is smaller than the sum of its proper divisors (29001400764).

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

12143433540 is a wasteful number, since it uses less digits than its factorization.

12143433540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1700797 (or 1700795 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 30.

Adding to 12143433540 its reverse (4533434121), we get a palindrome (16676867661).

The spelling of 12143433540 in words is "twelve billion, one hundred forty-three million, four hundred thirty-three thousand, five hundred forty".