531245335132 has 48 divisors (see below), whose sum is σ = 992428446240. Its totient is φ = 247957225472.

The previous prime is 531245335123. The next prime is 531245335211. The reversal of 531245335132 is 231533542135.

It is a junction number, because it is equal to n+sod(n) for n = 531245335091 and 531245335100.

It is a congruent number.

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, 4875228 + ... + 4983004.

It is an arithmetic number, because the mean of its divisors is an integer number (20675592630).

Almost surely, 2^531245335132 is an apocalyptic number.

It is an amenable number.

531245335132 is a deficient number, since it is larger than the sum of its proper divisors (461183111108).

531245335132 is a wasteful number, since it uses less digits than its factorization.

531245335132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108390 (or 108388 counting only the distinct ones).

The product of its digits is 162000, while the sum is 37.

Adding to 531245335132 its reverse (231533542135), we get a palindrome (762778877267).

The spelling of 531245335132 in words is "five hundred thirty-one billion, two hundred forty-five million, three hundred thirty-five thousand, one hundred thirty-two".