1313202030209 has 2 divisors, whose sum is σ = 1313202030210. Its totient is φ = 1313202030208.

The previous prime is 1313202030197. The next prime is 1313202030227. The reversal of 1313202030209 is 9020302023131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1233327965809 + 79874064400 = 1110553^2 + 282620^2 .

It is a cyclic number.

It is not a de Polignac number, because 1313202030209 - 2²⁴ = 1313185252993 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1313202030409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656601015104 + 656601015105.

It is an arithmetic number, because the mean of its divisors is an integer number (656601015105).

Almost surely, 2^{1313202030209} is an apocalyptic number.

It is an amenable number.

1313202030209 is a deficient number, since it is larger than the sum of its proper divisors (1).

1313202030209 is an equidigital number, since it uses as much as digits as its factorization.

1313202030209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 26.

The spelling of 1313202030209 in words is "one trillion, three hundred thirteen billion, two hundred two million, thirty thousand, two hundred nine".