12043112040 has 192 divisors, whose sum is σ = 40357895760. Its totient is φ = 3112611840.

The previous prime is 12043112021. The next prime is 12043112051. The reversal of 12043112040 is 4021134021.

It can be written as a sum of positive squares in 8 ways, for example, as 1082278404 + 10960833636 = 32898^2 + 104694^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2314722 + ... + 2319918.

Almost surely, 2^12043112040 is an apocalyptic number.

12043112040 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 12043112040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20178947880).

12043112040 is an abundant number, since it is smaller than the sum of its proper divisors (28314783720).

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

12043112040 is a wasteful number, since it uses less digits than its factorization.

12043112040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5412 (or 5405 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 12043112040 its reverse (4021134021), we get a palindrome (16064246061).

The spelling of 12043112040 in words is "twelve billion, forty-three million, one hundred twelve thousand, forty".