12043240021440 has 112 divisors (see below), whose sum is σ = 42485874550560. Its totient is φ = 3211530670080.

The previous prime is 12043240021433. The next prime is 12043240021451. The reversal of 12043240021440 is 4412004234021.

12043240021440 is a `hidden beast` number, since 1 + 2 + 0 + 4 + 3 + 2 + 400 + 214 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 696938121 + ... + 696955400.

It is an arithmetic number, because the mean of its divisors is an integer number (379338165630).

Almost surely, 2^{12043240021440} is an apocalyptic number.

12043240021440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12043240021440 is an abundant number, since it is smaller than the sum of its proper divisors (30442634529120).

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

12043240021440 is a wasteful number, since it uses less digits than its factorization.

12043240021440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1393893547 (or 1393893531 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 12043240021440 its reverse (4412004234021), we get a palindrome (16455244255461).

The spelling of 12043240021440 in words is "twelve trillion, forty-three billion, two hundred forty million, twenty-one thousand, four hundred forty".