200111020011 has 48 divisors (see below), whose sum is σ = 334250741760. Its totient is φ = 113000806080.

The previous prime is 200111020009. The next prime is 200111020033. The reversal of 200111020011 is 110020111002.

It is a happy number.

It is not a de Polignac number, because 200111020011 - 2¹ = 200111020009 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 200111019975 and 200111020002.

It is not an unprimeable number, because it can be changed into a prime (200111020001) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3076041 + ... + 3140421.

It is an arithmetic number, because the mean of its divisors is an integer number (6963557120).

Almost surely, 2^200111020011 is an apocalyptic number.

200111020011 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

200111020011 is a deficient number, since it is larger than the sum of its proper divisors (134139721749).

200111020011 is a wasteful number, since it uses less digits than its factorization.

200111020011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64976 (or 64973 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 200111020011 its reverse (110020111002), we get a palindrome (310131131013).

Subtracting from 200111020011 its reverse (110020111002), we obtain a palindrome (90090909009).

The spelling of 200111020011 in words is "two hundred billion, one hundred eleven million, twenty thousand, eleven".