1313021300209 has 2 divisors, whose sum is σ = 1313021300210. Its totient is φ = 1313021300208.

The previous prime is 1313021300197. The next prime is 1313021300233. The reversal of 1313021300209 is 9020031203131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 711876937984 + 601144362225 = 843728^2 + 775335^2 .

It is a cyclic number.

It is not a de Polignac number, because 1313021300209 - 2¹³ = 1313021292017 is a prime.

It is not a weakly prime, because it can be changed into another prime (1313021300249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656510650104 + 656510650105.

It is an arithmetic number, because the mean of its divisors is an integer number (656510650105).

Almost surely, 2^{1313021300209} is an apocalyptic number.

It is an amenable number.

1313021300209 is a deficient number, since it is larger than the sum of its proper divisors (1).

1313021300209 is an equidigital number, since it uses as much as digits as its factorization.

1313021300209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 25.

The spelling of 1313021300209 in words is "one trillion, three hundred thirteen billion, twenty-one million, three hundred thousand, two hundred nine".