1105131811 has 8 divisors (see below), whose sum is σ = 1264135520. Its totient is φ = 946410048.

The previous prime is 1105131793. The next prime is 1105131817. The reversal of 1105131811 is 1181315011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1105131811 - 2¹⁹ = 1104607523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1105131817) 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 7 ways as a sum of consecutive naturals, for example, 62016 + ... + 77821.

It is an arithmetic number, because the mean of its divisors is an integer number (158016940).

Almost surely, 2^1105131811 is an apocalyptic number.

1105131811 is a deficient number, since it is larger than the sum of its proper divisors (159003709).

1105131811 is a wasteful number, since it uses less digits than its factorization.

1105131811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140973.

The product of its (nonzero) digits is 120, while the sum is 22.

The square root of 1105131811 is about 33243.5228428035. The cubic root of 1105131811 is about 1033.8829183889.

Adding to 1105131811 its reverse (1181315011), we get a palindrome (2286446822).

The spelling of 1105131811 in words is "one billion, one hundred five million, one hundred thirty-one thousand, eight hundred eleven".