531235233440032 has 96 divisors (see below), whose sum is σ = 1151322811269120. Its totient is φ = 239279516340480.

The previous prime is 531235233439997. The next prime is 531235233440047. The reversal of 531235233440032 is 230044332532135.

It is a super-3 number, since 3×531235233440032³ (a number of 45 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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 15 ways as a sum of consecutive naturals, for example, 29785569 + ... + 44154847.

It is an arithmetic number, because the mean of its divisors is an integer number (11992945950720).

Almost surely, 2^{531235233440032} 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 531235233440032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (575661405634560).

531235233440032 is an abundant number, since it is smaller than the sum of its proper divisors (620087577829088).

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

531235233440032 is a wasteful number, since it uses less digits than its factorization.

531235233440032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14370254 (or 14370246 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 40.

Adding to 531235233440032 its reverse (230044332532135), we get a palindrome (761279565972167).

The spelling of 531235233440032 in words is "five hundred thirty-one trillion, two hundred thirty-five billion, two hundred thirty-three million, four hundred forty thousand, thirty-two".