531243541236 has 24 divisors (see below), whose sum is σ = 1239933904384. Its totient is φ = 177028945920.

The previous prime is 531243541079. The next prime is 531243541253. The reversal of 531243541236 is 632145342135.

531243541236 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 531243541194 and 531243541203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6486925 + ... + 6568308.

Almost surely, 2^531243541236 is an apocalyptic number.

It is an amenable number.

531243541236 is an abundant number, since it is smaller than the sum of its proper divisors (708690363148).

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

531243541236 is a wasteful number, since it uses less digits than its factorization.

531243541236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13058631 (or 13058629 counting only the distinct ones).

The product of its digits is 259200, while the sum is 39.

The spelling of 531243541236 in words is "five hundred thirty-one billion, two hundred forty-three million, five hundred forty-one thousand, two hundred thirty-six".