531243043005 has 32 divisors (see below), whose sum is σ = 929020105728. Its totient is φ = 258061132800.

The previous prime is 531243043003. The next prime is 531243043013. The reversal of 531243043005 is 500340342135.

It is not a de Polignac number, because 531243043005 - 2¹ = 531243043003 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531243043003) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33593806 + ... + 33609615.

It is an arithmetic number, because the mean of its divisors is an integer number (29031878304).

Almost surely, 2^531243043005 is an apocalyptic number.

It is an amenable number.

531243043005 is a deficient number, since it is larger than the sum of its proper divisors (397777062723).

531243043005 is a wasteful number, since it uses less digits than its factorization.

531243043005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67203477.

The product of its (nonzero) digits is 21600, while the sum is 30.

The spelling of 531243043005 in words is "five hundred thirty-one billion, two hundred forty-three million, forty-three thousand, five".