12043130040 has 96 divisors (see below), whose sum is σ = 39225251520. Its totient is φ = 3204520704.

The previous prime is 12043130009. The next prime is 12043130041. The reversal of 12043130040 is 4003134021.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 12043129995 and 12043130022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12043130041) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 130554 + ... + 202806.

It is an arithmetic number, because the mean of its divisors is an integer number (408596370).

Almost surely, 2^12043130040 is an apocalyptic number.

12043130040 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 12043130040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19612625760).

12043130040 is an abundant number, since it is smaller than the sum of its proper divisors (27182121480).

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

12043130040 is a wasteful number, since it uses less digits than its factorization.

12043130040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72733 (or 72726 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 12043130040 its reverse (4003134021), we get a palindrome (16046264061).

The spelling of 12043130040 in words is "twelve billion, forty-three million, one hundred thirty thousand, forty".