3120131009 has 2 divisors, whose sum is σ = 3120131010. Its totient is φ = 3120131008.

The previous prime is 3120130963. The next prime is 3120131071. The reversal of 3120131009 is 9001310213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2301312784 + 818818225 = 47972^2 + 28615^2 .

It is a cyclic number.

It is not a de Polignac number, because 3120131009 - 2⁸ = 3120130753 is a prime.

It is not a weakly prime, because it can be changed into another prime (3120101009) 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 as a sum of consecutive naturals, namely, 1560065504 + 1560065505.

It is an arithmetic number, because the mean of its divisors is an integer number (1560065505).

Almost surely, 2^3120131009 is an apocalyptic number.

It is an amenable number.

3120131009 is a deficient number, since it is larger than the sum of its proper divisors (1).

3120131009 is an equidigital number, since it uses as much as digits as its factorization.

3120131009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162, while the sum is 20.

The square root of 3120131009 is about 55858.1328814346. The cubic root of 3120131009 is about 1461.2491668888.

The spelling of 3120131009 in words is "three billion, one hundred twenty million, one hundred thirty-one thousand, nine".