12144323212 has 24 divisors (see below), whose sum is σ = 24293848320. Its totient is φ = 5203595280.

The previous prime is 12144323209. The next prime is 12144323237. The reversal of 12144323212 is 21232344121.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94089 + ... + 182047.

It is an arithmetic number, because the mean of its divisors is an integer number (1012243680).

Almost surely, 2^12144323212 is an apocalyptic number.

It is an amenable number.

12144323212 is an abundant number, since it is smaller than the sum of its proper divisors (12149525108).

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

12144323212 is a wasteful number, since it uses less digits than its factorization.

12144323212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92901 (or 92899 counting only the distinct ones).

The product of its digits is 2304, while the sum is 25.

Adding to 12144323212 its reverse (21232344121), we get a palindrome (33376667333).

The spelling of 12144323212 in words is "twelve billion, one hundred forty-four million, three hundred twenty-three thousand, two hundred twelve".