531344321052 has 24 divisors (see below), whose sum is σ = 1239906057600. Its totient is φ = 177100110576.

The previous prime is 531344321051. The next prime is 531344321063. The reversal of 531344321052 is 250123443135.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531344321051) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1681402 + ... + 1972257.

It is an arithmetic number, because the mean of its divisors is an integer number (51662752400).

Almost surely, 2^531344321052 is an apocalyptic number.

It is an amenable number.

531344321052 is an abundant number, since it is smaller than the sum of its proper divisors (708561736548).

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

531344321052 is a wasteful number, since it uses less digits than its factorization.

531344321052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3665785 (or 3665783 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 33.

Adding to 531344321052 its reverse (250123443135), we get a palindrome (781467764187).

The spelling of 531344321052 in words is "five hundred thirty-one billion, three hundred forty-four million, three hundred twenty-one thousand, fifty-two".