561110060101 has 2 divisors, whose sum is σ = 561110060102. Its totient is φ = 561110060100.

The previous prime is 561110060003. The next prime is 561110060183. The reversal of 561110060101 is 101060011165.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 486682035876 + 74428024225 = 697626^2 + 272815^2 .

It is a cyclic number.

It is not a de Polignac number, because 561110060101 - 2⁹ = 561110059589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (561110060191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280555030050 + 280555030051.

It is an arithmetic number, because the mean of its divisors is an integer number (280555030051).

Almost surely, 2^561110060101 is an apocalyptic number.

It is an amenable number.

561110060101 is a deficient number, since it is larger than the sum of its proper divisors (1).

561110060101 is an equidigital number, since it uses as much as digits as its factorization.

561110060101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 180, while the sum is 22.

Adding to 561110060101 its reverse (101060011165), we get a palindrome (662170071266).

The spelling of 561110060101 in words is "five hundred sixty-one billion, one hundred ten million, sixty thousand, one hundred one".