130420109 has 2 divisors, whose sum is σ = 130420110. Its totient is φ = 130420108.

The previous prime is 130420099. The next prime is 130420111. The reversal of 130420109 is 901024031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 100060009 + 30360100 = 10003^2 + 5510^2 .

It is an emirp because it is prime and its reverse (901024031) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 130420109 - 2⁸ = 130419853 is a prime.

It is a Sophie Germain prime.

Together with 130420111, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130420709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65210054 + 65210055.

It is an arithmetic number, because the mean of its divisors is an integer number (65210055).

Almost surely, 2^130420109 is an apocalyptic number.

It is an amenable number.

130420109 is a deficient number, since it is larger than the sum of its proper divisors (1).

130420109 is an equidigital number, since it uses as much as digits as its factorization.

130420109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 130420109 is about 11420.1623893883. The cubic root of 130420109 is about 507.1248040994.

The spelling of 130420109 in words is "one hundred thirty million, four hundred twenty thousand, one hundred nine".