811112113001 has 4 divisors (see below), whose sum is σ = 837277019904. Its totient is φ = 784947206100.

The previous prime is 811112112953. The next prime is 811112113033. The reversal of 811112113001 is 100311211118.

811112113001 is digitally balanced in base 2, 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 811112113001 - 2²² = 811107918697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (811112113901) 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, 13082453405 + ... + 13082453466.

It is an arithmetic number, because the mean of its divisors is an integer number (209319254976).

Almost surely, 2^811112113001 is an apocalyptic number.

It is an amenable number.

811112113001 is a deficient number, since it is larger than the sum of its proper divisors (26164906903).

811112113001 is a wasteful number, since it uses less digits than its factorization.

811112113001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26164906902.

The product of its (nonzero) digits is 48, while the sum is 20.

Adding to 811112113001 its reverse (100311211118), we get a palindrome (911423324119).

The spelling of 811112113001 in words is "eight hundred eleven billion, one hundred twelve million, one hundred thirteen thousand, one".