1323068161009 has 9 divisors (see below), whose sum is σ = 1539088655691. Its totient is φ = 1134051522240.

The previous prime is 1323068161003. The next prime is 1323068161117. The reversal of 1323068161009 is 9001618603231.

The square root of 1323068161009 is 1150247.

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

It can be written as a sum of positive squares in only one way, i.e., 41553599409 + 1281514561600 = 203847^2 + 1132040^2 .

It is not a de Polignac number, because 1323068161009 - 2⁹ = 1323068160497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1323068161003) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 7969569 + ... + 8133889.

Almost surely, 2^{1323068161009} is an apocalyptic number.

1323068161009 is the 1150247-th square number.

1323068161009 is the 575124-th centered octagonal number.

It is an amenable number.

1323068161009 is a deficient number, since it is larger than the sum of its proper divisors (216020494682).

1323068161009 is an frugal number, since it uses more digits than its factorization.

1323068161009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328656 (or 164328 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 40.

The spelling of 1323068161009 in words is "one trillion, three hundred twenty-three billion, sixty-eight million, one hundred sixty-one thousand, nine".