100011101101001 has 2 divisors, whose sum is σ = 100011101101002. Its totient is φ = 100011101101000.

The previous prime is 100011101100991. The next prime is 100011101101033. The reversal of 100011101101001 is 100101101110001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64091216478601 + 35919884622400 = 8005699^2 + 5993320^2 .

It is a cyclic number.

It is not a de Polignac number, because 100011101101001 - 2²² = 100011096906697 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 100011101101001.

It is not a weakly prime, because it can be changed into another prime (100011101104001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50005550550500 + 50005550550501.

It is an arithmetic number, because the mean of its divisors is an integer number (50005550550501).

Almost surely, 2^{100011101101001} is an apocalyptic number.

It is an amenable number.

100011101101001 is a deficient number, since it is larger than the sum of its proper divisors (1).

100011101101001 is an equidigital number, since it uses as much as digits as its factorization.

100011101101001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1, while the sum is 8.

Adding to 100011101101001 its reverse (100101101110001), we get a palindrome (200112202211002).

The spelling of 100011101101001 in words is "one hundred trillion, eleven billion, one hundred one million, one hundred one thousand, one".