2103212273 has 4 divisors (see below), whose sum is σ = 2226930660. Its totient is φ = 1979493888.

The previous prime is 2103212261. The next prime is 2103212291. The reversal of 2103212273 is 3722123012.

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 1908553969 + 194658304 = 43687^2 + 13952^2 .

It is a cyclic number.

It is not a de Polignac number, because 2103212273 - 2²⁰ = 2102163697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2103212213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61859168 + ... + 61859201.

It is an arithmetic number, because the mean of its divisors is an integer number (556732665).

Almost surely, 2^2103212273 is an apocalyptic number.

It is an amenable number.

2103212273 is a deficient number, since it is larger than the sum of its proper divisors (123718387).

2103212273 is a wasteful number, since it uses less digits than its factorization.

2103212273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123718386.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 2103212273 is about 45860.7923285239. The cubic root of 2103212273 is about 1281.2317799416.

Adding to 2103212273 its reverse (3722123012), we get a palindrome (5825335285).

The spelling of 2103212273 in words is "two billion, one hundred three million, two hundred twelve thousand, two hundred seventy-three".