513103043 has 2 divisors, whose sum is σ = 513103044. Its totient is φ = 513103042.

The previous prime is 513103033. The next prime is 513103051. The reversal of 513103043 is 340301315.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 513103043 - 2¹⁸ = 512840899 is a prime.

It is not a weakly prime, because it can be changed into another prime (513103033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256551521 + 256551522.

It is an arithmetic number, because the mean of its divisors is an integer number (256551522).

Almost surely, 2^513103043 is an apocalyptic number.

513103043 is a deficient number, since it is larger than the sum of its proper divisors (1).

513103043 is an equidigital number, since it uses as much as digits as its factorization.

513103043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 513103043 is about 22651.7779213906. Note that the first 3 decimals coincide. The cubic root of 513103043 is about 800.5740894905.

Adding to 513103043 its reverse (340301315), we get a palindrome (853404358).

The spelling of 513103043 in words is "five hundred thirteen million, one hundred three thousand, forty-three".