1117255527181 has 4 divisors (see below), whose sum is σ = 1136192061600. Its totient is φ = 1098318992764.

The previous prime is 1117255527161. The next prime is 1117255527229. The reversal of 1117255527181 is 1817255527111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1117255527181 - 2⁵ = 1117255527149 is a prime.

It is a super-2 number, since 2×1117255527181² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1117255527161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9468267121 + ... + 9468267238.

It is an arithmetic number, because the mean of its divisors is an integer number (284048015400).

Almost surely, 2^{1117255527181} is an apocalyptic number.

It is an amenable number.

1117255527181 is a deficient number, since it is larger than the sum of its proper divisors (18936534419).

1117255527181 is an equidigital number, since it uses as much as digits as its factorization.

1117255527181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18936534418.

The product of its digits is 196000, while the sum is 46.

The spelling of 1117255527181 in words is "one trillion, one hundred seventeen billion, two hundred fifty-five million, five hundred twenty-seven thousand, one hundred eighty-one".