6211811011 has 4 divisors (see below), whose sum is σ = 7099212592. Its totient is φ = 5324409432.

The previous prime is 6211810949. The next prime is 6211811017. The reversal of 6211811011 is 1101181126.

6211811011 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 6211811011 - 2¹¹ = 6211808963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6211811017) 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, 443700780 + ... + 443700793.

It is an arithmetic number, because the mean of its divisors is an integer number (1774803148).

Almost surely, 2^6211811011 is an apocalyptic number.

6211811011 is a deficient number, since it is larger than the sum of its proper divisors (887401581).

6211811011 is an equidigital number, since it uses as much as digits as its factorization.

6211811011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 887401580.

The product of its (nonzero) digits is 96, while the sum is 22.

The square root of 6211811011 is about 78815.0430501690. The cubic root of 6211811011 is about 1838.2563636207.

Adding to 6211811011 its reverse (1101181126), we get a palindrome (7312992137).

The spelling of 6211811011 in words is "six billion, two hundred eleven million, eight hundred eleven thousand, eleven".