531323030320 has 20 divisors (see below), whose sum is σ = 1235326045680. Its totient is φ = 212529212096.

The previous prime is 531323030299. The next prime is 531323030333. The reversal of 531323030320 is 23030323135.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3320768860 + ... + 3320769019.

It is an arithmetic number, because the mean of its divisors is an integer number (61766302284).

Almost surely, 2^531323030320 is an apocalyptic number.

It is an amenable number.

531323030320 is an abundant number, since it is smaller than the sum of its proper divisors (704003015360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

531323030320 is a wasteful number, since it uses less digits than its factorization.

531323030320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6641537892 (or 6641537886 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 25.

Adding to 531323030320 its reverse (23030323135), we get a palindrome (554353353455).

The spelling of 531323030320 in words is "five hundred thirty-one billion, three hundred twenty-three million, thirty thousand, three hundred twenty".