2103213313 has 4 divisors (see below), whose sum is σ = 2175737940. Its totient is φ = 2030688688.

The previous prime is 2103213239. The next prime is 2103213317. The reversal of 2103213313 is 3133123012.

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 489825424 + 1613387889 = 22132^2 + 40167^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2103213313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2103213317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36262270 + ... + 36262327.

It is an arithmetic number, because the mean of its divisors is an integer number (543934485).

Almost surely, 2^2103213313 is an apocalyptic number.

It is an amenable number.

2103213313 is a deficient number, since it is larger than the sum of its proper divisors (72524627).

2103213313 is an equidigital number, since it uses as much as digits as its factorization.

2103213313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72524626.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 2103213313 is about 45860.8036671840. The cubic root of 2103213313 is about 1281.2319911234.

Adding to 2103213313 its reverse (3133123012), we get a palindrome (5236336325).

The spelling of 2103213313 in words is "two billion, one hundred three million, two hundred thirteen thousand, three hundred thirteen".