1323324031609 has 2 divisors, whose sum is σ = 1323324031610. Its totient is φ = 1323324031608.

The previous prime is 1323324031591. The next prime is 1323324031651. The reversal of 1323324031609 is 9061304233231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1028966784400 + 294357247209 = 1014380^2 + 542547^2 .

It is a cyclic number.

It is not a de Polignac number, because 1323324031609 - 2⁵ = 1323324031577 is a prime.

It is a super-2 number, since 2×1323324031609² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1323324031409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661662015804 + 661662015805.

It is an arithmetic number, because the mean of its divisors is an integer number (661662015805).

Almost surely, 2^{1323324031609} is an apocalyptic number.

It is an amenable number.

1323324031609 is a deficient number, since it is larger than the sum of its proper divisors (1).

1323324031609 is an equidigital number, since it uses as much as digits as its factorization.

1323324031609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69984, while the sum is 37.

The spelling of 1323324031609 in words is "one trillion, three hundred twenty-three billion, three hundred twenty-four million, thirty-one thousand, six hundred nine".