2101113101 has 4 divisors (see below), whose sum is σ = 2152359804. Its totient is φ = 2049866400.

The previous prime is 2101113067. The next prime is 2101113121. The reversal of 2101113101 is 1013111012.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 85192900 + 2015920201 = 9230^2 + 44899^2 .

It is a cyclic number.

It is not a de Polignac number, because 2101113101 - 2⁶ = 2101113037 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 (2101113121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25623290 + ... + 25623371.

It is an arithmetic number, because the mean of its divisors is an integer number (538089951).

Almost surely, 2^2101113101 is an apocalyptic number.

It is an amenable number.

2101113101 is a deficient number, since it is larger than the sum of its proper divisors (51246703).

2101113101 is an equidigital number, since it uses as much as digits as its factorization.

2101113101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51246702.

The product of its (nonzero) digits is 6, while the sum is 11.

The square root of 2101113101 is about 45837.9002682278. The cubic root of 2101113101 is about 1280.8053812061.

Adding to 2101113101 its reverse (1013111012), we get a palindrome (3114224113).

The spelling of 2101113101 in words is "two billion, one hundred one million, one hundred thirteen thousand, one hundred one".