1131187196171 has 2 divisors, whose sum is σ = 1131187196172. Its totient is φ = 1131187196170.

The previous prime is 1131187196137. The next prime is 1131187196179. The reversal of 1131187196171 is 1716917811311.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1131187196171 - 2⁶ = 1131187196107 is a prime.

It is a super-2 number, since 2×1131187196171² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1131187196179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565593598085 + 565593598086.

It is an arithmetic number, because the mean of its divisors is an integer number (565593598086).

Almost surely, 2^{1131187196171} is an apocalyptic number.

1131187196171 is a deficient number, since it is larger than the sum of its proper divisors (1).

1131187196171 is an equidigital number, since it uses as much as digits as its factorization.

1131187196171 is an evil number, because the sum of its binary digits is even.

The product of its digits is 63504, while the sum is 47.

The spelling of 1131187196171 in words is "one trillion, one hundred thirty-one billion, one hundred eighty-seven million, one hundred ninety-six thousand, one hundred seventy-one".