1171171771201 has 2 divisors, whose sum is σ = 1171171771202. Its totient is φ = 1171171771200.

The previous prime is 1171171771117. The next prime is 1171171771207. The reversal of 1171171771201 is 1021771711711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 713450515600 + 457721255601 = 844660^2 + 676551^2 .

It is an emirp because it is prime and its reverse (1021771711711) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1171171771201 - 2⁷ = 1171171771073 is a prime.

It is not a weakly prime, because it can be changed into another prime (1171171771207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 585585885600 + 585585885601.

It is an arithmetic number, because the mean of its divisors is an integer number (585585885601).

Almost surely, 2^{1171171771201} is an apocalyptic number.

It is an amenable number.

1171171771201 is a deficient number, since it is larger than the sum of its proper divisors (1).

1171171771201 is an equidigital number, since it uses as much as digits as its factorization.

1171171771201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4802, while the sum is 37.

The spelling of 1171171771201 in words is "one trillion, one hundred seventy-one billion, one hundred seventy-one million, seven hundred seventy-one thousand, two hundred one".