100111061 has 2 divisors, whose sum is σ = 100111062. Its totient is φ = 100111060.

The previous prime is 100111051. The next prime is 100111069. The reversal of 100111061 is 160111001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67404100 + 32706961 = 8210^2 + 5719^2 .

It is a cyclic number.

It is not a de Polignac number, because 100111061 - 2¹⁰ = 100110037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100111069) 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, 50055530 + 50055531.

It is an arithmetic number, because the mean of its divisors is an integer number (50055531).

Almost surely, 2^100111061 is an apocalyptic number.

It is an amenable number.

100111061 is a deficient number, since it is larger than the sum of its proper divisors (1).

100111061 is an equidigital number, since it uses as much as digits as its factorization.

100111061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6, while the sum is 11.

The square root of 100111061 is about 10005.5515090374. The cubic root of 100111061 is about 464.3306529531.

Adding to 100111061 its reverse (160111001), we get a palindrome (260222062).

The spelling of 100111061 in words is "one hundred million, one hundred eleven thousand, sixty-one".