20001110211011 has 16 divisors (see below), whose sum is σ = 20682872168448. Its totient is φ = 19321641460800.

The previous prime is 20001110211007. The next prime is 20001110211023. The reversal of 20001110211011 is 11011201110002.

It is not a de Polignac number, because 20001110211011 - 2² = 20001110211007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20001110210983 and 20001110211001.

It is not an unprimeable number, because it can be changed into a prime (20001110211001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 163289156 + ... + 163411598.

It is an arithmetic number, because the mean of its divisors is an integer number (1292679510528).

Almost surely, 2^{20001110211011} is an apocalyptic number.

20001110211011 is a deficient number, since it is larger than the sum of its proper divisors (681761957437).

20001110211011 is a wasteful number, since it uses less digits than its factorization.

20001110211011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131762.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 20001110211011 its reverse (11011201110002), we get a palindrome (31012311321013).

The spelling of 20001110211011 in words is "twenty trillion, one billion, one hundred ten million, two hundred eleven thousand, eleven".