11111020111101 has 8 divisors (see below), whose sum is σ = 14814736823680. Its totient is φ = 7407325069632.

The previous prime is 11111020111099. The next prime is 11111020111111. The reversal of 11111020111101 is 10111102011111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11111020111101 - 2¹ = 11111020111099 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11111020111111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4181125 + ... + 6301098.

It is an arithmetic number, because the mean of its divisors is an integer number (1851842102960).

Almost surely, 2^{11111020111101} is an apocalyptic number.

It is an amenable number.

11111020111101 is a deficient number, since it is larger than the sum of its proper divisors (3703716712579).

11111020111101 is a wasteful number, since it uses less digits than its factorization.

11111020111101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10835555.

The product of its (nonzero) digits is 2, while the sum is 12.

Adding to 11111020111101 its reverse (10111102011111), we get a palindrome (21222122122212).

It can be divided in two parts, 1111102011110 and 1, that added together give a palindrome (1111102011111).

The spelling of 11111020111101 in words is "eleven trillion, one hundred eleven billion, twenty million, one hundred eleven thousand, one hundred one".