2101035603 has 4 divisors (see below), whose sum is σ = 2801380808. Its totient is φ = 1400690400.

The previous prime is 2101035589. The next prime is 2101035613. The reversal of 2101035603 is 3065301012.

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

It is not a de Polignac number, because 2101035603 - 2⁶ = 2101035539 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2101035603.

It is not an unprimeable number, because it can be changed into a prime (2101035613) 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, 350172598 + ... + 350172603.

It is an arithmetic number, because the mean of its divisors is an integer number (700345202).

Almost surely, 2^2101035603 is an apocalyptic number.

2101035603 is a deficient number, since it is larger than the sum of its proper divisors (700345205).

2101035603 is an equidigital number, since it uses as much as digits as its factorization.

2101035603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700345204.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 2101035603 is about 45837.0549119378. The cubic root of 2101035603 is about 1280.7896338267.

Adding to 2101035603 its reverse (3065301012), we get a palindrome (5166336615).

The spelling of 2101035603 in words is "two billion, one hundred one million, thirty-five thousand, six hundred three".