801120811 has 4 divisors (see below), whose sum is σ = 816236352. Its totient is φ = 786005272.

The previous prime is 801120799. The next prime is 801120823. The reversal of 801120811 is 118021108.

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

It is an interprime number because it is at equal distance from previous prime (801120799) and next prime (801120823).

It is a cyclic number.

It is not a de Polignac number, because 801120811 - 2⁵ = 801120779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (801120511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7557691 + ... + 7557796.

It is an arithmetic number, because the mean of its divisors is an integer number (204059088).

Almost surely, 2^801120811 is an apocalyptic number.

801120811 is a deficient number, since it is larger than the sum of its proper divisors (15115541).

801120811 is a wasteful number, since it uses less digits than its factorization.

801120811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15115540.

The product of its (nonzero) digits is 128, while the sum is 22.

The square root of 801120811 is about 28304.0776390965. The cubic root of 801120811 is about 928.7510930720.

Adding to 801120811 its reverse (118021108), we get a palindrome (919141919).

The spelling of 801120811 in words is "eight hundred one million, one hundred twenty thousand, eight hundred eleven".