13312020203309 has 2 divisors, whose sum is σ = 13312020203310. Its totient is φ = 13312020203308.

The previous prime is 13312020203281. The next prime is 13312020203341. The reversal of 13312020203309 is 90330202021331.

13312020203309 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9914173147684 + 3397847055625 = 3148678^2 + 1843325^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13312020203309 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13312020203359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6656010101654 + 6656010101655.

It is an arithmetic number, because the mean of its divisors is an integer number (6656010101655).

Almost surely, 2^{13312020203309} is an apocalyptic number.

It is an amenable number.

13312020203309 is a deficient number, since it is larger than the sum of its proper divisors (1).

13312020203309 is an equidigital number, since it uses as much as digits as its factorization.

13312020203309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 29.

The spelling of 13312020203309 in words is "thirteen trillion, three hundred twelve billion, twenty million, two hundred three thousand, three hundred nine".