520321434481 has 2 divisors, whose sum is σ = 520321434482. Its totient is φ = 520321434480.

The previous prime is 520321434469. The next prime is 520321434527. The reversal of 520321434481 is 184434123025.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 512142040881 + 8179393600 = 715641^2 + 90440^2 .

It is a cyclic number.

It is not a de Polignac number, because 520321434481 - 2²⁹ = 519784563569 is a prime.

It is a super-2 number, since 2×520321434481² (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 520321434481.

It is not a weakly prime, because it can be changed into another prime (520321434401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260160717240 + 260160717241.

It is an arithmetic number, because the mean of its divisors is an integer number (260160717241).

Almost surely, 2^520321434481 is an apocalyptic number.

It is an amenable number.

520321434481 is a deficient number, since it is larger than the sum of its proper divisors (1).

520321434481 is an equidigital number, since it uses as much as digits as its factorization.

520321434481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 92160, while the sum is 37.

The spelling of 520321434481 in words is "five hundred twenty billion, three hundred twenty-one million, four hundred thirty-four thousand, four hundred eighty-one".