231821064484 has 9 divisors (see below), whose sum is σ = 405688548027. Its totient is φ = 115910050764.

The previous prime is 231821064467. The next prime is 231821064523. The reversal of 231821064484 is 484460128132.

The square root of 231821064484 is 481478.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 231821064484.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 842587 + ... + 1083325.

Almost surely, 2^231821064484 is an apocalyptic number.

231821064484 is the 481478-th square number.

It is an amenable number.

231821064484 is a deficient number, since it is larger than the sum of its proper divisors (173867483543).

231821064484 is an frugal number, since it uses more digits than its factorization.

231821064484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481482 (or 240741 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 43.

The spelling of 231821064484 in words is "two hundred thirty-one billion, eight hundred twenty-one million, sixty-four thousand, four hundred eighty-four".