520310423 has 2 divisors, whose sum is σ = 520310424. Its totient is φ = 520310422.

The previous prime is 520310411. The next prime is 520310443. The reversal of 520310423 is 324013025.

It is a happy number.

It is an a-pointer prime, because the next prime (520310443) can be obtained adding 520310423 to its sum of digits (20).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 520310423 - 2⁴ = 520310407 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 520310395 and 520310404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (520310443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260155211 + 260155212.

It is an arithmetic number, because the mean of its divisors is an integer number (260155212).

Almost surely, 2^520310423 is an apocalyptic number.

520310423 is a deficient number, since it is larger than the sum of its proper divisors (1).

520310423 is an equidigital number, since it uses as much as digits as its factorization.

520310423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 520310423 is about 22810.3139610133. The cubic root of 520310423 is about 804.3051360090.

Adding to 520310423 its reverse (324013025), we get a palindrome (844323448).

The spelling of 520310423 in words is "five hundred twenty million, three hundred ten thousand, four hundred twenty-three".