12320012 has 12 divisors (see below), whose sum is σ = 22303680. Its totient is φ = 5947536.

The previous prime is 12319997. The next prime is 12320017. The reversal of 12320012 is 21002321.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12319975 and 12320002.

It is not an unprimeable number, because it can be changed into a prime (12320017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52988 + ... + 53219.

It is an arithmetic number, because the mean of its divisors is an integer number (1858640).

Almost surely, 2^12320012 is an apocalyptic number.

It is an amenable number.

12320012 is a deficient number, since it is larger than the sum of its proper divisors (9983668).

12320012 is a wasteful number, since it uses less digits than its factorization.

12320012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106240 (or 106238 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 12320012 is about 3509.9874643651. The cubic root of 12320012 is about 230.9601450453.

Adding to 12320012 its reverse (21002321), we get a palindrome (33322333).

The spelling of 12320012 in words is "twelve million, three hundred twenty thousand, twelve".