11200020020111 has 4 divisors (see below), whose sum is σ = 12061560021672. Its totient is φ = 10338480018552.

The previous prime is 11200020020087. The next prime is 11200020020113. The reversal of 11200020020111 is 11102002000211.

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 11200020020111 - 2¹⁸ = 11200019757967 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11200020020092 and 11200020020101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11200020020113) 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, 430770000761 + ... + 430770000786.

It is an arithmetic number, because the mean of its divisors is an integer number (3015390005418).

Almost surely, 2^{11200020020111} is an apocalyptic number.

11200020020111 is a deficient number, since it is larger than the sum of its proper divisors (861540001561).

11200020020111 is an equidigital number, since it uses as much as digits as its factorization.

11200020020111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 861540001560.

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

Adding to 11200020020111 its reverse (11102002000211), we get a palindrome (22302022020322).

The spelling of 11200020020111 in words is "eleven trillion, two hundred billion, twenty million, twenty thousand, one hundred eleven".