12123340230320 has 160 divisors (see below), whose sum is σ = 31214502411840. Its totient is φ = 4341948088320.

The previous prime is 12123340230271. The next prime is 12123340230361. The reversal of 12123340230320 is 2303204332121.

It is a happy number.

12123340230320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 12123340230320.

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, 45413072 + ... + 45679248.

It is an arithmetic number, because the mean of its divisors is an integer number (195090640074).

Almost surely, 2^{12123340230320} is an apocalyptic number.

12123340230320 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 12123340230320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15607251205920).

12123340230320 is an abundant number, since it is smaller than the sum of its proper divisors (19091162181520).

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

12123340230320 is a wasteful number, since it uses less digits than its factorization.

12123340230320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266983 (or 266977 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 12123340230320 its reverse (2303204332121), we get a palindrome (14426544562441).

The spelling of 12123340230320 in words is "twelve trillion, one hundred twenty-three billion, three hundred forty million, two hundred thirty thousand, three hundred twenty".