531243031422 has 8 divisors (see below), whose sum is σ = 1062486062856. Its totient is φ = 177081010472.

The previous prime is 531243031391. The next prime is 531243031489. The reversal of 531243031422 is 224130342135.

It is a sphenic number, since it is the product of 3 distinct primes.

531243031422 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 531243031422.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44270252613 + ... + 44270252624.

It is an arithmetic number, because the mean of its divisors is an integer number (132810757857).

Almost surely, 2^531243031422 is an apocalyptic number.

531243031422 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

531243031422 is a wasteful number, since it uses less digits than its factorization.

531243031422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88540505242.

The product of its (nonzero) digits is 17280, while the sum is 30.

Adding to 531243031422 its reverse (224130342135), we get a palindrome (755373373557).

The spelling of 531243031422 in words is "five hundred thirty-one billion, two hundred forty-three million, thirty-one thousand, four hundred twenty-two".