11100109901 has 2 divisors, whose sum is σ = 11100109902. Its totient is φ = 11100109900.

The previous prime is 11100109859. The next prime is 11100110009. The reversal of 11100109901 is 10990100111.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6601725001 + 4498384900 = 81251^2 + 67070^2 .

It is an emirp because it is prime and its reverse (10990100111) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11100109901 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11100109001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5550054950 + 5550054951.

It is an arithmetic number, because the mean of its divisors is an integer number (5550054951).

Almost surely, 2^11100109901 is an apocalyptic number.

It is an amenable number.

11100109901 is a deficient number, since it is larger than the sum of its proper divisors (1).

11100109901 is an equidigital number, since it uses as much as digits as its factorization.

11100109901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81, while the sum is 23.

The spelling of 11100109901 in words is "eleven billion, one hundred million, one hundred nine thousand, nine hundred one".