2101022103 has 4 divisors (see below), whose sum is σ = 2801362808. Its totient is φ = 1400681400.

The previous prime is 2101022083. The next prime is 2101022111. The reversal of 2101022103 is 3012201012.

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

It is not a de Polignac number, because 2101022103 - 2¹⁶ = 2100956567 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 (2101022173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 350170348 + ... + 350170353.

It is an arithmetic number, because the mean of its divisors is an integer number (700340702).

Almost surely, 2^2101022103 is an apocalyptic number.

2101022103 is a deficient number, since it is larger than the sum of its proper divisors (700340705).

2101022103 is an equidigital number, since it uses as much as digits as its factorization.

2101022103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700340704.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 2101022103 is about 45836.9076509313. The cubic root of 2101022103 is about 1280.7868906244.

Adding to 2101022103 its reverse (3012201012), we get a palindrome (5113223115).

The spelling of 2101022103 in words is "two billion, one hundred one million, twenty-two thousand, one hundred three".