11211020001101 has 4 divisors (see below), whose sum is σ = 11212478447712. Its totient is φ = 11209561554492.

The previous prime is 11211020001091. The next prime is 11211020001109. The reversal of 11211020001101 is 10110002011211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11211020001101 - 2³⁴ = 11193840131917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11211020001109) 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 3 ways as a sum of consecutive naturals, for example, 729211775 + ... + 729227148.

It is an arithmetic number, because the mean of its divisors is an integer number (2803119611928).

Almost surely, 2^{11211020001101} is an apocalyptic number.

It is an amenable number.

11211020001101 is a deficient number, since it is larger than the sum of its proper divisors (1458446611).

11211020001101 is an equidigital number, since it uses as much as digits as its factorization.

11211020001101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1458446610.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 11211020001101 its reverse (10110002011211), we get a palindrome (21321022012312).

The spelling of 11211020001101 in words is "eleven trillion, two hundred eleven billion, twenty million, one thousand, one hundred one".