2021103203 has 8 divisors (see below), whose sum is σ = 2337662208. Its totient is φ = 1711501704.

The previous prime is 2021103163. The next prime is 2021103211. The reversal of 2021103203 is 3023011202.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2021103203 - 2⁸ = 2021102947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2021133203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1738751 + ... + 1739912.

It is an arithmetic number, because the mean of its divisors is an integer number (292207776).

Almost surely, 2^2021103203 is an apocalyptic number.

2021103203 is a deficient number, since it is larger than the sum of its proper divisors (316559005).

2021103203 is an equidigital number, since it uses as much as digits as its factorization.

2021103203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3478753.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 2021103203 is about 44956.6814055486. The cubic root of 2021103203 is about 1264.3369494650.

Adding to 2021103203 its reverse (3023011202), we get a palindrome (5044114405).

The spelling of 2021103203 in words is "two billion, twenty-one million, one hundred three thousand, two hundred three".