204112131061 has 2 divisors, whose sum is σ = 204112131062. Its totient is φ = 204112131060.

The previous prime is 204112130993. The next prime is 204112131107. The reversal of 204112131061 is 160131211402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 200583058225 + 3529072836 = 447865^2 + 59406^2 .

It is a cyclic number.

It is not a de Polignac number, because 204112131061 - 2⁷ = 204112130933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204112131161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102056065530 + 102056065531.

It is an arithmetic number, because the mean of its divisors is an integer number (102056065531).

Almost surely, 2^204112131061 is an apocalyptic number.

It is an amenable number.

204112131061 is a deficient number, since it is larger than the sum of its proper divisors (1).

204112131061 is an equidigital number, since it uses as much as digits as its factorization.

204112131061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 204112131061 its reverse (160131211402), we get a palindrome (364243342463).

The spelling of 204112131061 in words is "two hundred four billion, one hundred twelve million, one hundred thirty-one thousand, sixty-one".