201101100120111 has 4 divisors (see below), whose sum is σ = 268134800160152. Its totient is φ = 134067400080072.

The previous prime is 201101100120083. The next prime is 201101100120121. The reversal of 201101100120111 is 111021001101102.

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

It is not a de Polignac number, because 201101100120111 - 2⁹ = 201101100119599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201101100120121) 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, 33516850020016 + ... + 33516850020021.

It is an arithmetic number, because the mean of its divisors is an integer number (67033700040038).

Almost surely, 2^{201101100120111} is an apocalyptic number.

201101100120111 is a deficient number, since it is larger than the sum of its proper divisors (67033700040041).

201101100120111 is an equidigital number, since it uses as much as digits as its factorization.

201101100120111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67033700040040.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 201101100120111 its reverse (111021001101102), we get a palindrome (312122101221213).

The spelling of 201101100120111 in words is "two hundred one trillion, one hundred one billion, one hundred million, one hundred twenty thousand, one hundred eleven".