3123030012 has 12 divisors (see below), whose sum is σ = 7287070056. Its totient is φ = 1041010000.

The previous prime is 3123030011. The next prime is 3123030041. The reversal of 3123030012 is 2100303213.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 3123029973 and 3123030000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3123030011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130126239 + ... + 130126262.

It is an arithmetic number, because the mean of its divisors is an integer number (607255838).

Almost surely, 2^3123030012 is an apocalyptic number.

It is an amenable number.

3123030012 is an abundant number, since it is smaller than the sum of its proper divisors (4164040044).

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

3123030012 is a wasteful number, since it uses less digits than its factorization.

3123030012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260252508 (or 260252506 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 3123030012 is about 55884.0765513755. The cubic root of 3123030012 is about 1461.7015896025.

Adding to 3123030012 its reverse (2100303213), we get a palindrome (5223333225).

The spelling of 3123030012 in words is "three billion, one hundred twenty-three million, thirty thousand, twelve".