81101244210118 has 16 divisors (see below), whose sum is σ = 133665883202880. Its totient is φ = 36598991826600.

The previous prime is 81101244210109. The next prime is 81101244210137.

81101244210118 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13260501228 + ... + 13260507343.

It is an arithmetic number, because the mean of its divisors is an integer number (8354117700180).

Almost surely, 2^{81101244210118} is an apocalyptic number.

81101244210118 is a deficient number, since it is larger than the sum of its proper divisors (52564638992762).

81101244210118 is a wasteful number, since it uses less digits than its factorization.

81101244210118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26521008723.

The product of its (nonzero) digits is 4096, while the sum is 34.

The spelling of 81101244210118 in words is "eighty-one trillion, one hundred one billion, two hundred forty-four million, two hundred ten thousand, one hundred eighteen".