201102111020011 has 4 divisors (see below), whose sum is σ = 201102221639800. Its totient is φ = 201102000400224.

The previous prime is 201102111019949. The next prime is 201102111020029. The reversal of 201102111020011 is 110020111201102.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 201102111020011 - 2⁹ = 201102111019499 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201102111019973 and 201102111020000.

It is not an unprimeable number, because it can be changed into a prime (201102111020411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52536606 + ... + 56234323.

It is an arithmetic number, because the mean of its divisors is an integer number (50275555409950).

Almost surely, 2^{201102111020011} is an apocalyptic number.

201102111020011 is a deficient number, since it is larger than the sum of its proper divisors (110619789).

201102111020011 is a wasteful number, since it uses less digits than its factorization.

201102111020011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110619788.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 201102111020011 its reverse (110020111201102), we get a palindrome (311122222221113).

The spelling of 201102111020011 in words is "two hundred one trillion, one hundred two billion, one hundred eleven million, twenty thousand, eleven".