12123324241340 has 96 divisors (see below), whose sum is σ = 27642618904320. Its totient is φ = 4439587516416.

The previous prime is 12123324241339. The next prime is 12123324241361. The reversal of 12123324241340 is 4314242332121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12123324241297 and 12123324241306.

It is a congruent 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, 39134576 + ... + 39443144.

It is an arithmetic number, because the mean of its divisors is an integer number (287943946920).

Almost surely, 2^{12123324241340} is an apocalyptic number.

12123324241340 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 12123324241340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13821309452160).

12123324241340 is an abundant number, since it is smaller than the sum of its proper divisors (15519294662980).

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

12123324241340 is a wasteful number, since it uses less digits than its factorization.

12123324241340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309831 (or 309829 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 32.

Adding to 12123324241340 its reverse (4314242332121), we get a palindrome (16437566573461).

The spelling of 12123324241340 in words is "twelve trillion, one hundred twenty-three billion, three hundred twenty-four million, two hundred forty-one thousand, three hundred forty".