531323122005 has 24 divisors (see below), whose sum is σ = 991803162168. Its totient is φ = 261574459776.

The previous prime is 531323121977. The next prime is 531323122021. The reversal of 531323122005 is 500221323135.

It is a happy number.

531323122005 is a `hidden beast` number, since 531 + 3 + 2 + 3 + 122 + 0 + 0 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 78359125329 + 452963996676 = 279927^2 + 673026^2 .

It is not a de Polignac number, because 531323122005 - 2¹⁰ = 531323120981 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 531323122005.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 454121742 + ... + 454122911.

It is an arithmetic number, because the mean of its divisors is an integer number (41325131757).

Almost surely, 2^531323122005 is an apocalyptic number.

It is an amenable number.

531323122005 is a deficient number, since it is larger than the sum of its proper divisors (460480040163).

531323122005 is a wasteful number, since it uses less digits than its factorization.

531323122005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 908244677 (or 908244674 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The spelling of 531323122005 in words is "five hundred thirty-one billion, three hundred twenty-three million, one hundred twenty-two thousand, five".