2106252310717 has 4 divisors (see below), whose sum is σ = 2109149494816. Its totient is φ = 2103355126620.

The previous prime is 2106252310709. The next prime is 2106252310727. The reversal of 2106252310717 is 7170132526012.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2106252310717 - 2³ = 2106252310709 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 (2106252310727) 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, 1448590959 + ... + 1448592412.

It is an arithmetic number, because the mean of its divisors is an integer number (527287373704).

Almost surely, 2^{2106252310717} is an apocalyptic number.

It is an amenable number.

2106252310717 is a deficient number, since it is larger than the sum of its proper divisors (2897184099).

2106252310717 is an equidigital number, since it uses as much as digits as its factorization.

2106252310717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2897184098.

The product of its (nonzero) digits is 35280, while the sum is 37.

Adding to 2106252310717 its reverse (7170132526012), we get a palindrome (9276384836729).

The spelling of 2106252310717 in words is "two trillion, one hundred six billion, two hundred fifty-two million, three hundred ten thousand, seven hundred seventeen".