12320412 has 24 divisors (see below), whose sum is σ = 30959376. Its totient is φ = 3790848.

The previous prime is 12320411. The next prime is 12320431. The reversal of 12320412 is 21402321.

It is a junction number, because it is equal to n+sod(n) for n = 12320391 and 12320400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12320411) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 39333 + ... + 39644.

It is an arithmetic number, because the mean of its divisors is an integer number (1289974).

Almost surely, 2^12320412 is an apocalyptic number.

12320412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12320412 is an abundant number, since it is smaller than the sum of its proper divisors (18638964).

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

12320412 is a wasteful number, since it uses less digits than its factorization.

12320412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78997 (or 78995 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 12320412 is about 3510.0444441631. The cubic root of 12320412 is about 230.9626445845.

Adding to 12320412 its reverse (21402321), we get a palindrome (33722733).

The spelling of 12320412 in words is "twelve million, three hundred twenty thousand, four hundred twelve".