1324420552009 has 2 divisors, whose sum is σ = 1324420552010. Its totient is φ = 1324420552008.

The previous prime is 1324420552001. The next prime is 1324420552031. The reversal of 1324420552009 is 9002550244231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1321573262409 + 2847289600 = 1149597^2 + 53360^2 .

It is a cyclic number.

It is not a de Polignac number, because 1324420552009 - 2³ = 1324420552001 is a prime.

It is not a weakly prime, because it can be changed into another prime (1324420552001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 662210276004 + 662210276005.

It is an arithmetic number, because the mean of its divisors is an integer number (662210276005).

Almost surely, 2^{1324420552009} is an apocalyptic number.

It is an amenable number.

1324420552009 is a deficient number, since it is larger than the sum of its proper divisors (1).

1324420552009 is an equidigital number, since it uses as much as digits as its factorization.

1324420552009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 86400, while the sum is 37.

The spelling of 1324420552009 in words is "one trillion, three hundred twenty-four billion, four hundred twenty million, five hundred fifty-two thousand, nine".