531003020124 has 96 divisors (see below), whose sum is σ = 1341475442496. Its totient is φ = 162855014400.

The previous prime is 531003020099. The next prime is 531003020147. The reversal of 531003020124 is 421020300135.

It is a self number, because there is not a number n which added to its sum of digits gives 531003020124.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2906274 + ... + 3083574.

It is an arithmetic number, because the mean of its divisors is an integer number (13973702526).

Almost surely, 2^531003020124 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 531003020124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (670737721248).

531003020124 is an abundant number, since it is smaller than the sum of its proper divisors (810472422372).

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

531003020124 is a wasteful number, since it uses less digits than its factorization.

531003020124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177655 (or 177653 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

Adding to 531003020124 its reverse (421020300135), we get a palindrome (952023320259).

The spelling of 531003020124 in words is "five hundred thirty-one billion, three million, twenty thousand, one hundred twenty-four".