6812112613 has 2 divisors, whose sum is σ = 6812112614. Its totient is φ = 6812112612.

The previous prime is 6812112611. The next prime is 6812112623. The reversal of 6812112613 is 3162112186.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6692385249 + 119727364 = 81807^2 + 10942^2 .

It is a cyclic number.

It is not a de Polignac number, because 6812112613 - 2¹ = 6812112611 is a prime.

Together with 6812112611, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6812112611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3406056306 + 3406056307.

It is an arithmetic number, because the mean of its divisors is an integer number (3406056307).

Almost surely, 2^6812112613 is an apocalyptic number.

It is an amenable number.

6812112613 is a deficient number, since it is larger than the sum of its proper divisors (1).

6812112613 is an equidigital number, since it uses as much as digits as its factorization.

6812112613 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3456, while the sum is 31.

The square root of 6812112613 is about 82535.5233399534. The cubic root of 6812112613 is about 1895.6606986473.

Adding to 6812112613 its reverse (3162112186), we get a palindrome (9974224799).

The spelling of 6812112613 in words is "six billion, eight hundred twelve million, one hundred twelve thousand, six hundred thirteen".