811113043 has 4 divisors (see below), whose sum is σ = 873506368. Its totient is φ = 748719720.

The previous prime is 811113041. The next prime is 811113073. The reversal of 811113043 is 340311118.

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 811113043 - 2¹ = 811113041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (811113041) 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, 31196643 + ... + 31196668.

It is an arithmetic number, because the mean of its divisors is an integer number (218376592).

Almost surely, 2^811113043 is an apocalyptic number.

811113043 is a deficient number, since it is larger than the sum of its proper divisors (62393325).

811113043 is a wasteful number, since it uses less digits than its factorization.

811113043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62393324.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 811113043 is about 28480.0464009453. The cubic root of 811113043 is about 932.5965296215.

The spelling of 811113043 in words is "eight hundred eleven million, one hundred thirteen thousand, forty-three".