12143524340 has 48 divisors (see below), whose sum is σ = 26938672320. Its totient is φ = 4585455360.

The previous prime is 12143524331. The next prime is 12143524369. The reversal of 12143524340 is 4342534121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51080 + ... + 164000.

It is an arithmetic number, because the mean of its divisors is an integer number (561222340).

Almost surely, 2^12143524340 is an apocalyptic number.

12143524340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12143524340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13469336160).

12143524340 is an abundant number, since it is smaller than the sum of its proper divisors (14795147980).

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

12143524340 is a wasteful number, since it uses less digits than its factorization.

12143524340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113232 (or 113230 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

The spelling of 12143524340 in words is "twelve billion, one hundred forty-three million, five hundred twenty-four thousand, three hundred forty".