531362321521232 has 80 divisors (see below), whose sum is σ = 1064820305472000. Its totient is φ = 256604161282560.

The previous prime is 531362321521231. The next prime is 531362321521237. The reversal of 531362321521232 is 232125123263135.

It is a self number, because there is not a number n which added to its sum of digits gives 531362321521232.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531362321521231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 680932019 + ... + 681711917.

It is an arithmetic number, because the mean of its divisors is an integer number (13310253818400).

Almost surely, 2^{531362321521232} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 531362321521232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (532410152736000).

531362321521232 is an abundant number, since it is smaller than the sum of its proper divisors (533457983950768).

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

531362321521232 is a wasteful number, since it uses less digits than its factorization.

531362321521232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 782644 (or 782638 counting only the distinct ones).

The product of its digits is 388800, while the sum is 41.

Adding to 531362321521232 its reverse (232125123263135), we get a palindrome (763487444784367).

The spelling of 531362321521232 in words is "five hundred thirty-one trillion, three hundred sixty-two billion, three hundred twenty-one million, five hundred twenty-one thousand, two hundred thirty-two".