1200538308113 has 2 divisors, whose sum is σ = 1200538308114. Its totient is φ = 1200538308112.

The previous prime is 1200538308049. The next prime is 1200538308161. The reversal of 1200538308113 is 3118038350021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1173911574784 + 26626733329 = 1083472^2 + 163177^2 .

It is a cyclic number.

It is not a de Polignac number, because 1200538308113 - 2⁶ = 1200538308049 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 (1200538388113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600269154056 + 600269154057.

It is an arithmetic number, because the mean of its divisors is an integer number (600269154057).

Almost surely, 2^{1200538308113} is an apocalyptic number.

It is an amenable number.

1200538308113 is a deficient number, since it is larger than the sum of its proper divisors (1).

1200538308113 is an equidigital number, since it uses as much as digits as its factorization.

1200538308113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 35.

The spelling of 1200538308113 in words is "one trillion, two hundred billion, five hundred thirty-eight million, three hundred eight thousand, one hundred thirteen".