2103215273 has 2 divisors, whose sum is σ = 2103215274. Its totient is φ = 2103215272.

The previous prime is 2103215263. The next prime is 2103215287. The reversal of 2103215273 is 3725123012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1388829289 + 714385984 = 37267^2 + 26728^2 .

It is a cyclic number.

It is not a de Polignac number, because 2103215273 - 2¹⁰ = 2103214249 is a prime.

It is not a weakly prime, because it can be changed into another prime (2103215263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1051607636 + 1051607637.

It is an arithmetic number, because the mean of its divisors is an integer number (1051607637).

Almost surely, 2^2103215273 is an apocalyptic number.

It is an amenable number.

2103215273 is a deficient number, since it is larger than the sum of its proper divisors (1).

2103215273 is an equidigital number, since it uses as much as digits as its factorization.

2103215273 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 2103215273 is about 45860.8250361897. The cubic root of 2103215273 is about 1281.2323891198.

Adding to 2103215273 its reverse (3725123012), we get a palindrome (5828338285).

The spelling of 2103215273 in words is "two billion, one hundred three million, two hundred fifteen thousand, two hundred seventy-three".