531243354532 has 24 divisors (see below), whose sum is σ = 1014285206592. Its totient is φ = 241452026400.

The previous prime is 531243354529. The next prime is 531243354539. The reversal of 531243354532 is 235453342135.

It is not an unprimeable number, because it can be changed into a prime (531243354539) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67344 + ... + 1032967.

It is an arithmetic number, because the mean of its divisors is an integer number (42261883608).

Almost surely, 2^531243354532 is an apocalyptic number.

It is an amenable number.

531243354532 is a deficient number, since it is larger than the sum of its proper divisors (483041852060).

531243354532 is a wasteful number, since it uses less digits than its factorization.

531243354532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1111299 (or 1111297 counting only the distinct ones).

The product of its digits is 648000, while the sum is 40.

Adding to 531243354532 its reverse (235453342135), we get a palindrome (766696696667).

The spelling of 531243354532 in words is "five hundred thirty-one billion, two hundred forty-three million, three hundred fifty-four thousand, five hundred thirty-two".