12340441231240 has 128 divisors (see below), whose sum is σ = 29451544012800. Its totient is φ = 4637560688640.

The previous prime is 12340441231219. The next prime is 12340441231331. The reversal of 12340441231240 is 4213214404321.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2293333350 + ... + 2293338730.

It is an arithmetic number, because the mean of its divisors is an integer number (230090187600).

Almost surely, 2^{12340441231240} is an apocalyptic number.

12340441231240 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 12340441231240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14725772006400).

12340441231240 is an abundant number, since it is smaller than the sum of its proper divisors (17111102781560).

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

12340441231240 is a wasteful number, since it uses less digits than its factorization.

12340441231240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10775 (or 10771 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 12340441231240 its reverse (4213214404321), we get a palindrome (16553655635561).

The spelling of 12340441231240 in words is "twelve trillion, three hundred forty billion, four hundred forty-one million, two hundred thirty-one thousand, two hundred forty".