20020200111011 has 4 divisors (see below), whose sum is σ = 20020255144224. Its totient is φ = 20020145077800.

The previous prime is 20020200110971. The next prime is 20020200111103. The reversal of 20020200111011 is 11011100202002.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20020200111011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20020200110983 and 20020200111001.

It is not an unprimeable number, because it can be changed into a prime (20020200111211) 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, 26967275 + ... + 27699716.

It is an arithmetic number, because the mean of its divisors is an integer number (5005063786056).

Almost surely, 2^{20020200111011} is an apocalyptic number.

20020200111011 is a deficient number, since it is larger than the sum of its proper divisors (55033213).

20020200111011 is an equidigital number, since it uses as much as digits as its factorization.

20020200111011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55033212.

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

Adding to 20020200111011 its reverse (11011100202002), we get a palindrome (31031300313013).

Subtracting from 20020200111011 its reverse (11011100202002), we obtain a palindrome (9009099909009).

The spelling of 20020200111011 in words is "twenty trillion, twenty billion, two hundred million, one hundred eleven thousand, eleven".