1913317042801 has 2 divisors, whose sum is σ = 1913317042802. Its totient is φ = 1913317042800.

The previous prime is 1913317042759. The next prime is 1913317042921. The reversal of 1913317042801 is 1082407133191.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1353962632801 + 559354410000 = 1163599^2 + 747900^2 .

It is a cyclic number.

It is not a de Polignac number, because 1913317042801 - 2¹¹ = 1913317040753 is a prime.

It is not a weakly prime, because it can be changed into another prime (1913317012801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 956658521400 + 956658521401.

It is an arithmetic number, because the mean of its divisors is an integer number (956658521401).

Almost surely, 2^{1913317042801} is an apocalyptic number.

It is an amenable number.

1913317042801 is a deficient number, since it is larger than the sum of its proper divisors (1).

1913317042801 is an equidigital number, since it uses as much as digits as its factorization.

1913317042801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 40.

The spelling of 1913317042801 in words is "one trillion, nine hundred thirteen billion, three hundred seventeen million, forty-two thousand, eight hundred one".