12321243362136 has 256 divisors, whose sum is σ = 33564430080000. Its totient is φ = 3756634675200.

The previous prime is 12321243362123. The next prime is 12321243362191. The reversal of 12321243362136 is 63126334212321.

12321243362136 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 12321243362094 and 12321243362103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 599592790 + ... + 599613338.

It is an arithmetic number, because the mean of its divisors is an integer number (131111055000).

Almost surely, 2^{12321243362136} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12321243362136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16782215040000).

12321243362136 is an abundant number, since it is smaller than the sum of its proper divisors (21243186717864).

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

12321243362136 is a wasteful number, since it uses less digits than its factorization.

12321243362136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21002 (or 20998 counting only the distinct ones).

The product of its digits is 186624, while the sum is 39.

Adding to 12321243362136 its reverse (63126334212321), we get a palindrome (75447577574457).

The spelling of 12321243362136 in words is "twelve trillion, three hundred twenty-one billion, two hundred forty-three million, three hundred sixty-two thousand, one hundred thirty-six".