2105324101 has 4 divisors (see below), whose sum is σ = 2105696812. Its totient is φ = 2104951392.

The previous prime is 2105324069. The next prime is 2105324237. The reversal of 2105324101 is 1014235012.

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 949256100 + 1156068001 = 30810^2 + 34001^2 .

It is a cyclic number.

It is not a de Polignac number, because 2105324101 - 2⁵ = 2105324069 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 (2105324401) 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, 177750 + ... + 189223.

It is an arithmetic number, because the mean of its divisors is an integer number (526424203).

Almost surely, 2^2105324101 is an apocalyptic number.

It is an amenable number.

2105324101 is a deficient number, since it is larger than the sum of its proper divisors (372711).

2105324101 is an equidigital number, since it uses as much as digits as its factorization.

2105324101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372710.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 2105324101 is about 45883.8108813991. The cubic root of 2105324101 is about 1281.6604632591.

Adding to 2105324101 its reverse (1014235012), we get a palindrome (3119559113).

It can be divided in two parts, 21053 and 24101, that added together give a palindrome (45154).

The spelling of 2105324101 in words is "two billion, one hundred five million, three hundred twenty-four thousand, one hundred one".