3120012 has 48 divisors (see below), whose sum is σ = 9246720. Its totient is φ = 891216.

The previous prime is 3120011. The next prime is 3120017. The reversal of 3120012 is 2100213.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 3119976 and 3120003.

It is not an unprimeable number, because it can be changed into a prime (3120011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1308 + ... + 2819.

It is an arithmetic number, because the mean of its divisors is an integer number (192640).

Almost surely, 2^3120012 is an apocalyptic number.

It is an amenable number.

3120012 is an abundant number, since it is smaller than the sum of its proper divisors (6126708).

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

3120012 is a wasteful number, since it uses less digits than its factorization.

3120012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4147 (or 4139 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 3120012 is about 1766.3555700934. The cubic root of 3120012 is about 146.1230588180.

Adding to 3120012 its reverse (2100213), we get a palindrome (5220225).

The spelling of 3120012 in words is "three million, one hundred twenty thousand, twelve".