520351123 has 2 divisors, whose sum is σ = 520351124. Its totient is φ = 520351122.

The previous prime is 520351093. The next prime is 520351129. The reversal of 520351123 is 321153025.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 520351123 - 2²¹ = 518253971 is a prime.

It is a super-2 number, since 2×520351123² = 541530582414722258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 520351094 and 520351103.

It is not a weakly prime, because it can be changed into another prime (520351129) 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, 260175561 + 260175562.

It is an arithmetic number, because the mean of its divisors is an integer number (260175562).

Almost surely, 2^520351123 is an apocalyptic number.

520351123 is a deficient number, since it is larger than the sum of its proper divisors (1).

520351123 is an equidigital number, since it uses as much as digits as its factorization.

520351123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 520351123 is about 22811.2060838527. The cubic root of 520351123 is about 804.3261070576.

The spelling of 520351123 in words is "five hundred twenty million, three hundred fifty-one thousand, one hundred twenty-three".