531243503042 has 16 divisors (see below), whose sum is σ = 964273921920. Its totient is φ = 214283093568.

The previous prime is 531243503041. The next prime is 531243503047. The reversal of 531243503042 is 240305342135.

It is not an unprimeable number, because it can be changed into a prime (531243503041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1116057542 + ... + 1116058017.

It is an arithmetic number, because the mean of its divisors is an integer number (60267120120).

Almost surely, 2^531243503042 is an apocalyptic number.

531243503042 is a deficient number, since it is larger than the sum of its proper divisors (433030418878).

531243503042 is a wasteful number, since it uses less digits than its factorization.

531243503042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2232115585.

The product of its (nonzero) digits is 43200, while the sum is 32.

Adding to 531243503042 its reverse (240305342135), we get a palindrome (771548845177).

The spelling of 531243503042 in words is "five hundred thirty-one billion, two hundred forty-three million, five hundred three thousand, forty-two".