3012031321 has 16 divisors (see below), whose sum is σ = 3552973200. Its totient is φ = 2526547968.

The previous prime is 3012031307. The next prime is 3012031327. The reversal of 3012031321 is 1231302103.

It can be written as a sum of positive squares in 8 ways, for example, as 156625225 + 2855406096 = 12515^2 + 53436^2 .

It is a cyclic number.

It is not a de Polignac number, because 3012031321 - 2⁵ = 3012031289 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3012031295 and 3012031304.

It is not an unprimeable number, because it can be changed into a prime (3012031327) 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 15 ways as a sum of consecutive naturals, for example, 228576 + ... + 241393.

It is an arithmetic number, because the mean of its divisors is an integer number (222060825).

Almost surely, 2^3012031321 is an apocalyptic number.

It is an amenable number.

3012031321 is a deficient number, since it is larger than the sum of its proper divisors (540941879).

3012031321 is a wasteful number, since it uses less digits than its factorization.

3012031321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470028.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 3012031321 is about 54881.9762854801. The cubic root of 3012031321 is about 1444.1750172492.

Adding to 3012031321 its reverse (1231302103), we get a palindrome (4243333424).

The spelling of 3012031321 in words is "three billion, twelve million, thirty-one thousand, three hundred twenty-one".