12143034240 has 256 divisors, whose sum is σ = 39519385920. Its totient is φ = 3170893824.

The previous prime is 12143034223. The next prime is 12143034263. The reversal of 12143034240 is 4243034121.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 12143034240.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21044832 + ... + 21045408.

Almost surely, 2^12143034240 is an apocalyptic number.

12143034240 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 12143034240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19759692960).

12143034240 is an abundant number, since it is smaller than the sum of its proper divisors (27376351680).

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

12143034240 is a wasteful number, since it uses less digits than its factorization.

12143034240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 809 (or 797 counting only the distinct ones).

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

Adding to 12143034240 its reverse (4243034121), we get a palindrome (16386068361).

The spelling of 12143034240 in words is "twelve billion, one hundred forty-three million, thirty-four thousand, two hundred forty".