2101420103 has 4 divisors (see below), whose sum is σ = 2110596840. Its totient is φ = 2092243368.

The previous prime is 2101420081. The next prime is 2101420117. The reversal of 2101420103 is 3010241012.

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

It is a cyclic number.

It is not a de Polignac number, because 2101420103 - 2¹⁴ = 2101403719 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 (2101420163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4588025 + ... + 4588482.

It is an arithmetic number, because the mean of its divisors is an integer number (527649210).

Almost surely, 2^2101420103 is an apocalyptic number.

2101420103 is a deficient number, since it is larger than the sum of its proper divisors (9176737).

2101420103 is an equidigital number, since it uses as much as digits as its factorization.

2101420103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9176736.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 2101420103 is about 45841.2489249584. The cubic root of 2101420103 is about 1280.8677593592.

Adding to 2101420103 its reverse (3010241012), we get a palindrome (5111661115).

The spelling of 2101420103 in words is "two billion, one hundred one million, four hundred twenty thousand, one hundred three".