2100442003 has 4 divisors (see below), whose sum is σ = 2291391288. Its totient is φ = 1909492720.

The previous prime is 2100441997. The next prime is 2100442031. The reversal of 2100442003 is 3002440012.

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 2100442003 - 2¹⁷ = 2100310931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2100442033) 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, 95474626 + ... + 95474647.

It is an arithmetic number, because the mean of its divisors is an integer number (572847822).

Almost surely, 2^2100442003 is an apocalyptic number.

2100442003 is a deficient number, since it is larger than the sum of its proper divisors (190949285).

2100442003 is a wasteful number, since it uses less digits than its factorization.

2100442003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190949284.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 2100442003 is about 45830.5793439271. The cubic root of 2100442003 is about 1280.6690031027.

Adding to 2100442003 its reverse (3002440012), we get a palindrome (5102882015).

The spelling of 2100442003 in words is "two billion, one hundred million, four hundred forty-two thousand, three".