12322243140 has 24 divisors (see below), whose sum is σ = 34502280960. Its totient is φ = 3285931488.

The previous prime is 12322243133. The next prime is 12322243183. The reversal of 12322243140 is 4134222321.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 12322243140.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102685300 + ... + 102685419.

It is an arithmetic number, because the mean of its divisors is an integer number (1437595040).

Almost surely, 2^12322243140 is an apocalyptic number.

12322243140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12322243140 is an abundant number, since it is smaller than the sum of its proper divisors (22180037820).

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

12322243140 is a wasteful number, since it uses less digits than its factorization.

12322243140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205370731 (or 205370729 counting only the distinct ones).

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

Adding to 12322243140 its reverse (4134222321), we get a palindrome (16456465461).

The spelling of 12322243140 in words is "twelve billion, three hundred twenty-two million, two hundred forty-three thousand, one hundred forty".