531040324000 has 96 divisors (see below), whose sum is σ = 1305060120000. Its totient is φ = 212368262400.

The previous prime is 531040323973. The next prime is 531040324007. The reversal of 531040324000 is 423040135.

It is not an unprimeable number, because it can be changed into a prime (531040324007) 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, 21663751 + ... + 21688249.

It is an arithmetic number, because the mean of its divisors is an integer number (13594376250).

Almost surely, 2^531040324000 is an apocalyptic number.

531040324000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 531040324000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (652530060000).

531040324000 is an abundant number, since it is smaller than the sum of its proper divisors (774019796000).

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

531040324000 is a wasteful number, since it uses less digits than its factorization.

531040324000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29943 (or 29925 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

Adding to 531040324000 its reverse (423040135), we get a palindrome (531463364135).

The spelling of 531040324000 in words is "five hundred thirty-one billion, forty million, three hundred twenty-four thousand".