2101040003 has 4 divisors (see below), whose sum is σ = 2101422048. Its totient is φ = 2100657960.

The previous prime is 2101039981. The next prime is 2101040033. The reversal of 2101040003 is 3000401012.

It is a happy number.

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 2101040003 - 2¹² = 2101035907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2101040033) 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, 182651 + ... + 193812.

It is an arithmetic number, because the mean of its divisors is an integer number (525355512).

Almost surely, 2^2101040003 is an apocalyptic number.

2101040003 is a deficient number, since it is larger than the sum of its proper divisors (382045).

2101040003 is an equidigital number, since it uses as much as digits as its factorization.

2101040003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382044.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 2101040003 is about 45837.1029080155. The cubic root of 2101040003 is about 1280.7905279049.

Adding to 2101040003 its reverse (3000401012), we get a palindrome (5101441015).

The spelling of 2101040003 in words is "two billion, one hundred one million, forty thousand, three".