2021202003 has 4 divisors (see below), whose sum is σ = 2694936008. Its totient is φ = 1347468000.

The previous prime is 2021201989. The next prime is 2021202017. The reversal of 2021202003 is 3002021202.

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

It is an interprime number because it is at equal distance from previous prime (2021201989) and next prime (2021202017).

It is not a de Polignac number, because 2021202003 - 2⁶ = 2021201939 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 2021202003.

It is not an unprimeable number, because it can be changed into a prime (2021202103) 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, 336866998 + ... + 336867003.

It is an arithmetic number, because the mean of its divisors is an integer number (673734002).

Almost surely, 2^2021202003 is an apocalyptic number.

2021202003 is a deficient number, since it is larger than the sum of its proper divisors (673734005).

2021202003 is an equidigital number, since it uses as much as digits as its factorization.

2021202003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673734004.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 2021202003 is about 44957.7802276758. The cubic root of 2021202003 is about 1264.3575511600.

Adding to 2021202003 its reverse (3002021202), we get a palindrome (5023223205).

The spelling of 2021202003 in words is "two billion, twenty-one million, two hundred two thousand, three".