4120409009 has 2 divisors, whose sum is σ = 4120409010. Its totient is φ = 4120409008.

The previous prime is 4120408997. The next prime is 4120409011. The reversal of 4120409009 is 9009040214.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2127054400 + 1993354609 = 46120^2 + 44647^2 .

It is a cyclic number.

It is not a de Polignac number, because 4120409009 - 2⁴ = 4120408993 is a prime.

It is a super-3 number, since 3×4120409009³ (a number of 30 digits) contains 333 as substring.

Together with 4120409011, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (4120409099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2060204504 + 2060204505.

It is an arithmetic number, because the mean of its divisors is an integer number (2060204505).

Almost surely, 2^4120409009 is an apocalyptic number.

It is an amenable number.

4120409009 is a deficient number, since it is larger than the sum of its proper divisors (1).

4120409009 is an equidigital number, since it uses as much as digits as its factorization.

4120409009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 4120409009 is about 64190.4121267343. The cubic root of 4120409009 is about 1603.1719638779.

The spelling of 4120409009 in words is "four billion, one hundred twenty million, four hundred nine thousand, nine".