2101322203 has 4 divisors (see below), whose sum is σ = 2111281288. Its totient is φ = 2091363120.

The previous prime is 2101322189. The next prime is 2101322221. The reversal of 2101322203 is 3022231012.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2101322203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2101322243) 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, 4979226 + ... + 4979647.

It is an arithmetic number, because the mean of its divisors is an integer number (527820322).

Almost surely, 2^2101322203 is an apocalyptic number.

2101322203 is a deficient number, since it is larger than the sum of its proper divisors (9959085).

2101322203 is an equidigital number, since it uses as much as digits as its factorization.

2101322203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9959084.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 2101322203 is about 45840.1810969372. The cubic root of 2101322203 is about 1280.8478682229.

Adding to 2101322203 its reverse (3022231012), we get a palindrome (5123553215).

The spelling of 2101322203 in words is "two billion, one hundred one million, three hundred twenty-two thousand, two hundred three".