2106313213 has 8 divisors (see below), whose sum is σ = 2173442040. Its totient is φ = 2039934720.

The previous prime is 2106313207. The next prime is 2106313217. The reversal of 2106313213 is 3123136012.

It can be written as a sum of positive squares in 4 ways, for example, as 8398404 + 2097914809 = 2898^2 + 45803^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2106313213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2106313217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 181878 + ... + 193111.

It is an arithmetic number, because the mean of its divisors is an integer number (271680255).

Almost surely, 2^2106313213 is an apocalyptic number.

It is an amenable number.

2106313213 is a deficient number, since it is larger than the sum of its proper divisors (67128827).

2106313213 is a wasteful number, since it uses less digits than its factorization.

2106313213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375167.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 2106313213 is about 45894.5880578527. The cubic root of 2106313213 is about 1281.8611461003.

Adding to 2106313213 its reverse (3123136012), we get a palindrome (5229449225).

The spelling of 2106313213 in words is "two billion, one hundred six million, three hundred thirteen thousand, two hundred thirteen".