1170201916973 has 2 divisors, whose sum is σ = 1170201916974. Its totient is φ = 1170201916972.

The previous prime is 1170201916921. The next prime is 1170201916993. The reversal of 1170201916973 is 3796191020711.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 697522291684 + 472679625289 = 835178^2 + 687517^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1170201916973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1170201916993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 585100958486 + 585100958487.

It is an arithmetic number, because the mean of its divisors is an integer number (585100958487).

Almost surely, 2^{1170201916973} is an apocalyptic number.

It is an amenable number.

1170201916973 is a deficient number, since it is larger than the sum of its proper divisors (1).

1170201916973 is an equidigital number, since it uses as much as digits as its factorization.

1170201916973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 142884, while the sum is 47.

The spelling of 1170201916973 in words is "one trillion, one hundred seventy billion, two hundred one million, nine hundred sixteen thousand, nine hundred seventy-three".