1081010811 has 4 divisors (see below), whose sum is σ = 1441347752. Its totient is φ = 720673872.

The previous prime is 1081010767. The next prime is 1081010831. The reversal of 1081010811 is 1180101801.

It is a happy number.

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

It is not a de Polignac number, because 1081010811 - 2⁶ = 1081010747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1081010831) 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 3 ways as a sum of consecutive naturals, for example, 180168466 + ... + 180168471.

It is an arithmetic number, because the mean of its divisors is an integer number (360336938).

Almost surely, 2^1081010811 is an apocalyptic number.

1081010811 is a deficient number, since it is larger than the sum of its proper divisors (360336941).

1081010811 is an equidigital number, since it uses as much as digits as its factorization.

1081010811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360336940.

The product of its (nonzero) digits is 64, while the sum is 21.

The square root of 1081010811 is about 32878.7288531658. The cubic root of 1081010811 is about 1026.3055538455.

The spelling of 1081010811 in words is "one billion, eighty-one million, ten thousand, eight hundred eleven".