20110011101 has 2 divisors, whose sum is σ = 20110011102. Its totient is φ = 20110011100.

The previous prime is 20110011083. The next prime is 20110011139. The reversal of 20110011101 is 10111001102.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17882643076 + 2227368025 = 133726^2 + 47195^2 .

It is a cyclic number.

It is not a de Polignac number, because 20110011101 - 2¹⁸ = 20109748957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20110011001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10055005550 + 10055005551.

It is an arithmetic number, because the mean of its divisors is an integer number (10055005551).

Almost surely, 2^20110011101 is an apocalyptic number.

It is an amenable number.

20110011101 is a deficient number, since it is larger than the sum of its proper divisors (1).

20110011101 is an equidigital number, since it uses as much as digits as its factorization.

20110011101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2, while the sum is 8.

Adding to 20110011101 its reverse (10111001102), we get a palindrome (30221012203).

Subtracting from 20110011101 its reverse (10111001102), we obtain a palindrome (9999009999).

It can be divided in two parts, 2011001 and 1101, that added together give a palindrome (2012102).

The spelling of 20110011101 in words is "twenty billion, one hundred ten million, eleven thousand, one hundred one".