2103211001 has 4 divisors (see below), whose sum is σ = 2106212004. Its totient is φ = 2100210000.

The previous prime is 2103210983. The next prime is 2103211129. The reversal of 2103211001 is 1001123012.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1705607401 + 397603600 = 41299^2 + 19940^2 .

It is a cyclic number.

It is not a de Polignac number, because 2103211001 - 2²⁶ = 2036102137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2103211801) 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, 1499450 + ... + 1500851.

It is an arithmetic number, because the mean of its divisors is an integer number (526553001).

Almost surely, 2^2103211001 is an apocalyptic number.

It is an amenable number.

2103211001 is a deficient number, since it is larger than the sum of its proper divisors (3001003).

2103211001 is an equidigital number, since it uses as much as digits as its factorization.

2103211001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3001002.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 2103211001 is about 45860.7784604666. The cubic root of 2103211001 is about 1281.2315216498.

Adding to 2103211001 its reverse (1001123012), we get a palindrome (3104334013).

The spelling of 2103211001 in words is "two billion, one hundred three million, two hundred eleven thousand, one".