2120130109 has 2 divisors, whose sum is σ = 2120130110. Its totient is φ = 2120130108.

The previous prime is 2120130073. The next prime is 2120130139. The reversal of 2120130109 is 9010310212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1691018884 + 429111225 = 41122^2 + 20715^2 .

It is a cyclic number.

It is not a de Polignac number, because 2120130109 - 2⁹ = 2120129597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2120130139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060065054 + 1060065055.

It is an arithmetic number, because the mean of its divisors is an integer number (1060065055).

Almost surely, 2^2120130109 is an apocalyptic number.

It is an amenable number.

2120130109 is a deficient number, since it is larger than the sum of its proper divisors (1).

2120130109 is an equidigital number, since it uses as much as digits as its factorization.

2120130109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 2120130109 is about 46044.8706046613. The cubic root of 2120130109 is about 1284.6579373856.

The spelling of 2120130109 in words is "two billion, one hundred twenty million, one hundred thirty thousand, one hundred nine".