531230120 has 64 divisors (see below), whose sum is σ = 1301616000. Its totient is φ = 194358528.

The previous prime is 531230111. The next prime is 531230131. The reversal of 531230120 is 21032135.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9989 + ... + 34091.

It is an arithmetic number, because the mean of its divisors is an integer number (20337750).

Almost surely, 2^531230120 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 531230120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (650808000).

531230120 is an abundant number, since it is smaller than the sum of its proper divisors (770385880).

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

531230120 is a wasteful number, since it uses less digits than its factorization.

531230120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24162 (or 24158 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 531230120 is about 23048.4298814475. The cubic root of 531230120 is about 809.8928476863.

Adding to 531230120 its reverse (21032135), we get a palindrome (552262255).

The spelling of 531230120 in words is "five hundred thirty-one million, two hundred thirty thousand, one hundred twenty".