520403241331 has 2 divisors, whose sum is σ = 520403241332. Its totient is φ = 520403241330.

The previous prime is 520403241317. The next prime is 520403241349. The reversal of 520403241331 is 133142304025.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 520403241331 - 2⁵ = 520403241299 is a prime.

It is a super-2 number, since 2×520403241331² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 520403241331.

It is not a weakly prime, because it can be changed into another prime (520403241361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260201620665 + 260201620666.

It is an arithmetic number, because the mean of its divisors is an integer number (260201620666).

Almost surely, 2^520403241331 is an apocalyptic number.

520403241331 is a deficient number, since it is larger than the sum of its proper divisors (1).

520403241331 is an equidigital number, since it uses as much as digits as its factorization.

520403241331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 28.

Adding to 520403241331 its reverse (133142304025), we get a palindrome (653545545356).

The spelling of 520403241331 in words is "five hundred twenty billion, four hundred three million, two hundred forty-one thousand, three hundred thirty-one".