12320144333212 has 12 divisors (see below), whose sum is σ = 21560278781160. Its totient is φ = 6160064681456.

The previous prime is 12320144333207. The next prime is 12320144333257. The reversal of 12320144333212 is 21233344102321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3627339 + ... + 6147997.

It is an arithmetic number, because the mean of its divisors is an integer number (1796689898430).

Almost surely, 2^{12320144333212} is an apocalyptic number.

It is an amenable number.

12320144333212 is a deficient number, since it is larger than the sum of its proper divisors (9240134447948).

12320144333212 is a wasteful number, since it uses less digits than its factorization.

12320144333212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3742580 (or 3742578 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 12320144333212 its reverse (21233344102321), we get a palindrome (33553488435533).

The spelling of 12320144333212 in words is "twelve trillion, three hundred twenty billion, one hundred forty-four million, three hundred thirty-three thousand, two hundred twelve".