11211303101 has 4 divisors (see below), whose sum is σ = 11322306204. Its totient is φ = 11100300000.

The previous prime is 11211303083. The next prime is 11211303121. The reversal of 11211303101 is 10130311211.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5642263225 + 5569039876 = 75115^2 + 74626^2 .

It is a cyclic number.

It is not a de Polignac number, because 11211303101 - 2¹⁰ = 11211302077 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 (11211303121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55501400 + ... + 55501601.

It is an arithmetic number, because the mean of its divisors is an integer number (2830576551).

Almost surely, 2^11211303101 is an apocalyptic number.

It is an amenable number.

11211303101 is a deficient number, since it is larger than the sum of its proper divisors (111003103).

11211303101 is a wasteful number, since it uses less digits than its factorization.

11211303101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111003102.

The product of its (nonzero) digits is 18, while the sum is 14.

Adding to 11211303101 its reverse (10130311211), we get a palindrome (21341614312).

It can be divided in two parts, 11 and 211303101, that added together give a palindrome (211303112).

The spelling of 11211303101 in words is "eleven billion, two hundred eleven million, three hundred three thousand, one hundred one".