531442123532 has 48 divisors (see below), whose sum is σ = 997106362560. Its totient is φ = 247194807552.

The previous prime is 531442123507. The next prime is 531442123559. The reversal of 531442123532 is 235321244135.

It is a junction number, because it is equal to n+sod(n) for n = 531442123492 and 531442123501.

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, 8400194 + ... + 8463222.

It is an arithmetic number, because the mean of its divisors is an integer number (20773049220).

Almost surely, 2^531442123532 is an apocalyptic number.

It is an amenable number.

531442123532 is a deficient number, since it is larger than the sum of its proper divisors (465664239028).

531442123532 is a wasteful number, since it uses less digits than its factorization.

531442123532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65570 (or 65568 counting only the distinct ones).

The product of its digits is 86400, while the sum is 35.

Adding to 531442123532 its reverse (235321244135), we get a palindrome (766763367667).

The spelling of 531442123532 in words is "five hundred thirty-one billion, four hundred forty-two million, one hundred twenty-three thousand, five hundred thirty-two".