1106561311 has 4 divisors (see below), whose sum is σ = 1164801400. Its totient is φ = 1048321224.

The previous prime is 1106561249. The next prime is 1106561321. The reversal of 1106561311 is 1131656011.

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

It is a cyclic number.

It is not a de Polignac number, because 1106561311 - 2¹¹ = 1106559263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1106561321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29120016 + ... + 29120053.

It is an arithmetic number, because the mean of its divisors is an integer number (291200350).

Almost surely, 2^1106561311 is an apocalyptic number.

1106561311 is a deficient number, since it is larger than the sum of its proper divisors (58240089).

1106561311 is an equidigital number, since it uses as much as digits as its factorization.

1106561311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58240088.

The product of its (nonzero) digits is 540, while the sum is 25.

The square root of 1106561311 is about 33265.0163234591. The cubic root of 1106561311 is about 1034.3285059145.

The spelling of 1106561311 in words is "one billion, one hundred six million, five hundred sixty-one thousand, three hundred eleven".