100111201061 has 2 divisors, whose sum is σ = 100111201062. Its totient is φ = 100111201060.

The previous prime is 100111201033. The next prime is 100111201063. The reversal of 100111201061 is 160102111001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 77009025025 + 23102176036 = 277505^2 + 151994^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100111201061 is a prime.

Together with 100111201063, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100111201063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50055600530 + 50055600531.

It is an arithmetic number, because the mean of its divisors is an integer number (50055600531).

Almost surely, 2^100111201061 is an apocalyptic number.

It is an amenable number.

100111201061 is a deficient number, since it is larger than the sum of its proper divisors (1).

100111201061 is an equidigital number, since it uses as much as digits as its factorization.

100111201061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 100111201061 its reverse (160102111001), we get a palindrome (260213312062).

The spelling of 100111201061 in words is "one hundred billion, one hundred eleven million, two hundred one thousand, sixty-one".