6143123513 has 2 divisors, whose sum is σ = 6143123514. Its totient is φ = 6143123512.

The previous prime is 6143123509. The next prime is 6143123531. The reversal of 6143123513 is 3153213416.

Together with next prime (6143123531) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4900420009 + 1242703504 = 70003^2 + 35252^2 .

It is a cyclic number.

It is not a de Polignac number, because 6143123513 - 2² = 6143123509 is a prime.

It is a super-2 number, since 2×6143123513² = 75475932991946922338, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (6143123113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3071561756 + 3071561757.

It is an arithmetic number, because the mean of its divisors is an integer number (3071561757).

Almost surely, 2^6143123513 is an apocalyptic number.

It is an amenable number.

6143123513 is a deficient number, since it is larger than the sum of its proper divisors (1).

6143123513 is an equidigital number, since it uses as much as digits as its factorization.

6143123513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6480, while the sum is 29.

The square root of 6143123513 is about 78378.0805646579. The cubic root of 6143123513 is about 1831.4556895726.

Adding to 6143123513 its reverse (3153213416), we get a palindrome (9296336929).

The spelling of 6143123513 in words is "six billion, one hundred forty-three million, one hundred twenty-three thousand, five hundred thirteen".