1131655027171 has 4 divisors (see below), whose sum is σ = 1135517331312. Its totient is φ = 1127792723032.

The previous prime is 1131655027169. The next prime is 1131655027183. The reversal of 1131655027171 is 1717205561311.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1131655027171 - 2¹ = 1131655027169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1131655021171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1931151631 + ... + 1931152216.

It is an arithmetic number, because the mean of its divisors is an integer number (283879332828).

Almost surely, 2^{1131655027171} is an apocalyptic number.

1131655027171 is a deficient number, since it is larger than the sum of its proper divisors (3862304141).

1131655027171 is an equidigital number, since it uses as much as digits as its factorization.

1131655027171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3862304140.

The product of its (nonzero) digits is 44100, while the sum is 40.

The spelling of 1131655027171 in words is "one trillion, one hundred thirty-one billion, six hundred fifty-five million, twenty-seven thousand, one hundred seventy-one".