12043112240 has 40 divisors (see below), whose sum is σ = 28757006160. Its totient is φ = 4687047936.

The previous prime is 12043112231. The next prime is 12043112251. The reversal of 12043112240 is 4221134021.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2031350 + ... + 2037269.

It is an arithmetic number, because the mean of its divisors is an integer number (718925154).

Almost surely, 2^12043112240 is an apocalyptic number.

12043112240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12043112240 is an abundant number, since it is smaller than the sum of its proper divisors (16713893920).

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

12043112240 is a wasteful number, since it uses less digits than its factorization.

12043112240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4068669 (or 4068663 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 12043112240 its reverse (4221134021), we get a palindrome (16264246261).

The spelling of 12043112240 in words is "twelve billion, forty-three million, one hundred twelve thousand, two hundred forty".