11111101000101 has 20 divisors (see below), whose sum is σ = 17471646799200. Its totient is φ = 7017537472776.

The previous prime is 11111101000099. The next prime is 11111101000121. The reversal of 11111101000101 is 10100010111111.

It is not a de Polignac number, because 11111101000101 - 2¹ = 11111101000099 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11111101000121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3609842841 + ... + 3609845918.

It is an arithmetic number, because the mean of its divisors is an integer number (873582339960).

Almost surely, 2^{11111101000101} is an apocalyptic number.

It is an amenable number.

11111101000101 is a deficient number, since it is larger than the sum of its proper divisors (6360545799099).

11111101000101 is an equidigital number, since it uses as much as digits as its factorization.

11111101000101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7219688790 (or 7219688781 counting only the distinct ones).

The product of its (nonzero) digits is 1, while the sum is 9.

Adding to 11111101000101 its reverse (10100010111111), we get a palindrome (21211111111212).

It can be divided in two parts, 11111 and 101000101, that multiplied together give a palindrome (1122212122211).

The spelling of 11111101000101 in words is "eleven trillion, one hundred eleven billion, one hundred one million, one hundred one", and thus it is an aban number.