11202020111 has 8 divisors (see below), whose sum is σ = 11228289840. Its totient is φ = 11175772608.

The previous prime is 11202020099. The next prime is 11202020113. The reversal of 11202020111 is 11102020211.

11202020111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11202020111 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11202020092 and 11202020101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11202020113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1394675 + ... + 1402683.

It is an arithmetic number, because the mean of its divisors is an integer number (1403536230).

Almost surely, 2^11202020111 is an apocalyptic number.

11202020111 is a deficient number, since it is larger than the sum of its proper divisors (26269729).

11202020111 is an equidigital number, since it uses as much as digits as its factorization.

11202020111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11113.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 11202020111 its reverse (11102020211), we get a palindrome (22304040322).

The spelling of 11202020111 in words is "eleven billion, two hundred two million, twenty thousand, one hundred eleven".