6542123113 has 2 divisors, whose sum is σ = 6542123114. Its totient is φ = 6542123112.

The previous prime is 6542123087. The next prime is 6542123129. The reversal of 6542123113 is 3113212456.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5711127184 + 830995929 = 75572^2 + 28827^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6542123113 is a prime.

It is not a weakly prime, because it can be changed into another prime (6542723113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3271061556 + 3271061557.

It is an arithmetic number, because the mean of its divisors is an integer number (3271061557).

Almost surely, 2^6542123113 is an apocalyptic number.

It is an amenable number.

6542123113 is a deficient number, since it is larger than the sum of its proper divisors (1).

6542123113 is an equidigital number, since it uses as much as digits as its factorization.

6542123113 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4320, while the sum is 28.

The square root of 6542123113 is about 80883.3920715495. The cubic root of 6542123113 is about 1870.2783111179.

Adding to 6542123113 its reverse (3113212456), we get a palindrome (9655335569).

The spelling of 6542123113 in words is "six billion, five hundred forty-two million, one hundred twenty-three thousand, one hundred thirteen".