520346023 has 2 divisors, whose sum is σ = 520346024. Its totient is φ = 520346022.

The previous prime is 520346011. The next prime is 520346069. The reversal of 520346023 is 320643025.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-520346023 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (520346093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260173011 + 260173012.

It is an arithmetic number, because the mean of its divisors is an integer number (260173012).

Almost surely, 2^520346023 is an apocalyptic number.

520346023 is a deficient number, since it is larger than the sum of its proper divisors (1).

520346023 is an equidigital number, since it uses as much as digits as its factorization.

520346023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 520346023 is about 22811.0942964164. The cubic root of 520346023 is about 804.3234792957.

Adding to 520346023 its reverse (320643025), we get a palindrome (840989048).

The spelling of 520346023 in words is "five hundred twenty million, three hundred forty-six thousand, twenty-three".