1131101105 has 4 divisors (see below), whose sum is σ = 1357321332. Its totient is φ = 904880880.

The previous prime is 1131101093. The next prime is 1131101113. The reversal of 1131101105 is 5011011311.

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

It can be written as a sum of positive squares in 2 ways, for example, as 355812769 + 775288336 = 18863^2 + 27844^2 .

It is not a de Polignac number, because 1131101105 - 2¹⁰ = 1131100081 is a prime.

It is a super-3 number, since 3×1131101105³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1131101105.

It is an unprimeable number.

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, 113110106 + ... + 113110115.

It is an arithmetic number, because the mean of its divisors is an integer number (339330333).

Almost surely, 2^1131101105 is an apocalyptic number.

It is an amenable number.

1131101105 is a deficient number, since it is larger than the sum of its proper divisors (226220227).

1131101105 is an equidigital number, since it uses as much as digits as its factorization.

1131101105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226220226.

The product of its (nonzero) digits is 15, while the sum is 14.

The square root of 1131101105 is about 33631.8465892077. The cubic root of 1131101105 is about 1041.9186429432.

Adding to 1131101105 its reverse (5011011311), we get a palindrome (6142112416).

The spelling of 1131101105 in words is "one billion, one hundred thirty-one million, one hundred one thousand, one hundred five".