1101110551161 has 4 divisors (see below), whose sum is σ = 1468147401552. Its totient is φ = 734073700772.

The previous prime is 1101110551159. The next prime is 1101110551253. The reversal of 1101110551161 is 1611550111011.

It is a happy number.

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 1101110551161 - 2¹ = 1101110551159 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1101110551111) 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 3 ways as a sum of consecutive naturals, for example, 183518425191 + ... + 183518425196.

It is an arithmetic number, because the mean of its divisors is an integer number (367036850388).

Almost surely, 2^{1101110551161} is an apocalyptic number.

It is an amenable number.

1101110551161 is a deficient number, since it is larger than the sum of its proper divisors (367036850391).

1101110551161 is an equidigital number, since it uses as much as digits as its factorization.

1101110551161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367036850390.

The product of its (nonzero) digits is 150, while the sum is 24.

Adding to 1101110551161 its reverse (1611550111011), we get a palindrome (2712660662172).

The spelling of 1101110551161 in words is "one trillion, one hundred one billion, one hundred ten million, five hundred fifty-one thousand, one hundred sixty-one".