12312312 has 16 divisors (see below), whose sum is σ = 30780840. Its totient is φ = 4104096.

The previous prime is 12312283. The next prime is 12312331. The reversal of 12312312 is 21321321.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 12312291 and 12312300.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 256483 + ... + 256530.

Almost surely, 2^12312312 is an apocalyptic number.

12312312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12312312 is an abundant number, since it is smaller than the sum of its proper divisors (18468528).

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

12312312 is a wasteful number, since it uses less digits than its factorization.

12312312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513022 (or 513018 counting only the distinct ones).

The product of its digits is 72, while the sum is 15.

The square root of 12312312 is about 3508.8904229115. The cubic root of 12312312 is about 230.9120183675.

Adding to 12312312 its reverse (21321321), we get a palindrome (33633633).

Subtracting 12312312 from its reverse (21321321), we obtain a palindrome (9009009).

The spelling of 12312312 in words is "twelve million, three hundred twelve thousand, three hundred twelve".