12144212312 has 32 divisors (see below), whose sum is σ = 23264280000. Its totient is φ = 5940509184.

The previous prime is 12144212303. The next prime is 12144212351. The reversal of 12144212312 is 21321244121.

It is a congruent number.

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, 1240814 + ... + 1250562.

It is an arithmetic number, because the mean of its divisors is an integer number (727008750).

Almost surely, 2^12144212312 is an apocalyptic number.

It is an amenable number.

12144212312 is a deficient number, since it is larger than the sum of its proper divisors (11120067688).

12144212312 is a wasteful number, since it uses less digits than its factorization.

12144212312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13115 (or 13111 counting only the distinct ones).

The product of its digits is 768, while the sum is 23.

Adding to 12144212312 its reverse (21321244121), we get a palindrome (33465456433).

The spelling of 12144212312 in words is "twelve billion, one hundred forty-four million, two hundred twelve thousand, three hundred twelve".