1204205113 has 2 divisors, whose sum is σ = 1204205114. Its totient is φ = 1204205112.

The previous prime is 1204205083. The next prime is 1204205117. The reversal of 1204205113 is 3115024021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 768564729 + 435640384 = 27723^2 + 20872^2 .

It is a cyclic number.

It is not a de Polignac number, because 1204205113 - 2²⁵ = 1170650681 is a prime.

It is not a weakly prime, because it can be changed into another prime (1204205117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 602102556 + 602102557.

It is an arithmetic number, because the mean of its divisors is an integer number (602102557).

Almost surely, 2^1204205113 is an apocalyptic number.

It is an amenable number.

1204205113 is a deficient number, since it is larger than the sum of its proper divisors (1).

1204205113 is an equidigital number, since it uses as much as digits as its factorization.

1204205113 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 1204205113 is about 34701.6586491194. The cubic root of 1204205113 is about 1063.8983996797.

Adding to 1204205113 its reverse (3115024021), we get a palindrome (4319229134).

The spelling of 1204205113 in words is "one billion, two hundred four million, two hundred five thousand, one hundred thirteen".