1320322205009 has 2 divisors, whose sum is σ = 1320322205010. Its totient is φ = 1320322205008.

The previous prime is 1320322204991. The next prime is 1320322205029. The reversal of 1320322205009 is 9005022230231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 906738163984 + 413584041025 = 952228^2 + 643105^2 .

It is a cyclic number.

It is not a de Polignac number, because 1320322205009 - 2³⁶ = 1251602728273 is a prime.

It is not a weakly prime, because it can be changed into another prime (1320322205029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660161102504 + 660161102505.

It is an arithmetic number, because the mean of its divisors is an integer number (660161102505).

Almost surely, 2^{1320322205009} is an apocalyptic number.

It is an amenable number.

1320322205009 is a deficient number, since it is larger than the sum of its proper divisors (1).

1320322205009 is an equidigital number, since it uses as much as digits as its factorization.

1320322205009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 29.

The spelling of 1320322205009 in words is "one trillion, three hundred twenty billion, three hundred twenty-two million, two hundred five thousand, nine".