12312312233212 has 6 divisors (see below), whose sum is σ = 21546546408128. Its totient is φ = 6156156116604.

The previous prime is 12312312233203. The next prime is 12312312233227. The reversal of 12312312233212 is 21233221321321.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1539039029148 + ... + 1539039029155.

Almost surely, 2^{12312312233212} is an apocalyptic number.

It is an amenable number.

12312312233212 is a deficient number, since it is larger than the sum of its proper divisors (9234234174916).

12312312233212 is a wasteful number, since it uses less digits than its factorization.

12312312233212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3078078058307 (or 3078078058305 counting only the distinct ones).

The product of its digits is 5184, while the sum is 28.

Adding to 12312312233212 its reverse (21233221321321), we get a palindrome (33545533554533).

The spelling of 12312312233212 in words is "twelve trillion, three hundred twelve billion, three hundred twelve million, two hundred thirty-three thousand, two hundred twelve".