81112055034101 has 32 divisors (see below), whose sum is σ = 103570259869440. Its totient is φ = 61785015699456.

The previous prime is 81112055034083. The next prime is 81112055034161. The reversal of 81112055034101 is 10143055021118.

It is a de Polignac number, because none of the positive numbers 2^k-81112055034101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (81112055034161) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43372316 + ... + 45203781.

It is an arithmetic number, because the mean of its divisors is an integer number (3236570620920).

Almost surely, 2^{81112055034101} is an apocalyptic number.

It is an amenable number.

81112055034101 is a deficient number, since it is larger than the sum of its proper divisors (22458204835339).

81112055034101 is a wasteful number, since it uses less digits than its factorization.

81112055034101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88576493.

The product of its (nonzero) digits is 4800, while the sum is 32.

The spelling of 81112055034101 in words is "eighty-one trillion, one hundred twelve billion, fifty-five million, thirty-four thousand, one hundred one".