1217119420793 has 2 divisors, whose sum is σ = 1217119420794. Its totient is φ = 1217119420792.

The previous prime is 1217119420717. The next prime is 1217119420817. The reversal of 1217119420793 is 3970249117121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1161549373504 + 55570047289 = 1077752^2 + 235733^2 .

It is a cyclic number.

It is not a de Polignac number, because 1217119420793 - 2³⁴ = 1199939551609 is a prime.

It is not a weakly prime, because it can be changed into another prime (1217119420393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 608559710396 + 608559710397.

It is an arithmetic number, because the mean of its divisors is an integer number (608559710397).

Almost surely, 2^{1217119420793} is an apocalyptic number.

It is an amenable number.

1217119420793 is a deficient number, since it is larger than the sum of its proper divisors (1).

1217119420793 is an equidigital number, since it uses as much as digits as its factorization.

1217119420793 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 190512, while the sum is 47.

The spelling of 1217119420793 in words is "one trillion, two hundred seventeen billion, one hundred nineteen million, four hundred twenty thousand, seven hundred ninety-three".