1108533131161 has 9 divisors (see below), whose sum is σ = 1110720032149. Its totient is φ = 1106350533724.

The previous prime is 1108533131149. The next prime is 1108533131183. The reversal of 1108533131161 is 1611313358011.

The square root of 1108533131161 is 1052869.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 1108533131161 - 2⁷ = 1108533131033 is a prime.

It is a super-2 number, since 2×1108533131161² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1108533131191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 933894210 + ... + 933895396.

Almost surely, 2^{1108533131161} is an apocalyptic number.

1108533131161 is the 1052869-th square number.

1108533131161 is the 526435-th centered octagonal number.

It is an amenable number.

1108533131161 is a deficient number, since it is larger than the sum of its proper divisors (2186900988).

1108533131161 is an frugal number, since it uses more digits than its factorization.

1108533131161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4148 (or 2074 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 34.

Adding to 1108533131161 its reverse (1611313358011), we get a palindrome (2719846489172).

The spelling of 1108533131161 in words is "one trillion, one hundred eight billion, five hundred thirty-three million, one hundred thirty-one thousand, one hundred sixty-one".