12042013340040 has 128 divisors (see below), whose sum is σ = 37011024489600. Its totient is φ = 3132554618880.

The previous prime is 12042013339987. The next prime is 12042013340041. The reversal of 12042013340040 is 4004331024021.

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

It is not an unprimeable number, because it can be changed into a prime (12042013340041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48944451 + ... + 49189869.

It is an arithmetic number, because the mean of its divisors is an integer number (289148628825).

Almost surely, 2^{12042013340040} is an apocalyptic number.

12042013340040 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 12042013340040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18505512244800).

12042013340040 is an abundant number, since it is smaller than the sum of its proper divisors (24969011149560).

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

12042013340040 is a wasteful number, since it uses less digits than its factorization.

12042013340040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255447 (or 255443 counting only the distinct ones).

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

Adding to 12042013340040 its reverse (4004331024021), we get a palindrome (16046344364061).

The spelling of 12042013340040 in words is "twelve trillion, forty-two billion, thirteen million, three hundred forty thousand, forty".