101105561105 has 4 divisors (see below), whose sum is σ = 121326673332. Its totient is φ = 80884448880.

The previous prime is 101105561093. The next prime is 101105561107. The reversal of 101105561105 is 501165501101.

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

It can be written as a sum of positive squares in 2 ways, for example, as 70998799936 + 30106761169 = 266456^2 + 173513^2 .

It is not a de Polignac number, because 101105561105 - 2¹⁸ = 101105298961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101105561107) 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, 10110556106 + ... + 10110556115.

It is an arithmetic number, because the mean of its divisors is an integer number (30331668333).

Almost surely, 2^101105561105 is an apocalyptic number.

It is an amenable number.

101105561105 is a deficient number, since it is larger than the sum of its proper divisors (20221112227).

101105561105 is an equidigital number, since it uses as much as digits as its factorization.

101105561105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20221112226.

The product of its (nonzero) digits is 750, while the sum is 26.

The spelling of 101105561105 in words is "one hundred one billion, one hundred five million, five hundred sixty-one thousand, one hundred five".