204121112087 has 2 divisors, whose sum is σ = 204121112088. Its totient is φ = 204121112086.

The previous prime is 204121112059. The next prime is 204121112119. The reversal of 204121112087 is 780211121402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 204121112087 - 2¹⁰ = 204121111063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204121117087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102060556043 + 102060556044.

It is an arithmetic number, because the mean of its divisors is an integer number (102060556044).

Almost surely, 2^204121112087 is an apocalyptic number.

204121112087 is a deficient number, since it is larger than the sum of its proper divisors (1).

204121112087 is an equidigital number, since it uses as much as digits as its factorization.

204121112087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1792, while the sum is 29.

Adding to 204121112087 its reverse (780211121402), we get a palindrome (984332233489).

The spelling of 204121112087 in words is "two hundred four billion, one hundred twenty-one million, one hundred twelve thousand, eighty-seven".