2004120109 has 2 divisors, whose sum is σ = 2004120110. Its totient is φ = 2004120108.

The previous prime is 2004120103. The next prime is 2004120113. The reversal of 2004120109 is 9010214002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1166017609 + 838102500 = 34147^2 + 28950^2 .

It is a cyclic number.

It is not a de Polignac number, because 2004120109 - 2¹⁹ = 2003595821 is a prime.

It is a super-2 number, since 2×2004120109² = 8032994822596343762, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2004120103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1002060054 + 1002060055.

It is an arithmetic number, because the mean of its divisors is an integer number (1002060055).

Almost surely, 2^2004120109 is an apocalyptic number.

It is an amenable number.

2004120109 is a deficient number, since it is larger than the sum of its proper divisors (1).

2004120109 is an equidigital number, since it uses as much as digits as its factorization.

2004120109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 2004120109 is about 44767.4000696936. The cubic root of 2004120109 is about 1260.7856251518.

The spelling of 2004120109 in words is "two billion, four million, one hundred twenty thousand, one hundred nine".