531243512412 has 24 divisors (see below), whose sum is σ = 1251602841216. Its totient is φ = 175361935728.

The previous prime is 531243512363. The next prime is 531243512413. The reversal of 531243512412 is 214215342135.

531243512412 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531243512413) 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, 214903098 + ... + 214905569.

It is an arithmetic number, because the mean of its divisors is an integer number (52150118384).

Almost surely, 2^531243512412 is an apocalyptic number.

It is an amenable number.

531243512412 is an abundant number, since it is smaller than the sum of its proper divisors (720359328804).

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

531243512412 is a wasteful number, since it uses less digits than its factorization.

531243512412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429808777 (or 429808775 counting only the distinct ones).

The product of its digits is 28800, while the sum is 33.

Adding to 531243512412 its reverse (214215342135), we get a palindrome (745458854547).

The spelling of 531243512412 in words is "five hundred thirty-one billion, two hundred forty-three million, five hundred twelve thousand, four hundred twelve".