101041111561 has 16 divisors (see below), whose sum is σ = 116613310464. Its totient is φ = 86802369984.

The previous prime is 101041111547. The next prime is 101041111603. The reversal of 101041111561 is 165111140101.

It is a cyclic number.

It is not a de Polignac number, because 101041111561 - 2⁵ = 101041111529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101041111261) 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 15 ways as a sum of consecutive naturals, for example, 4555561 + ... + 4577686.

It is an arithmetic number, because the mean of its divisors is an integer number (7288331904).

Almost surely, 2^101041111561 is an apocalyptic number.

It is an amenable number.

101041111561 is a deficient number, since it is larger than the sum of its proper divisors (15572198903).

101041111561 is a wasteful number, since it uses less digits than its factorization.

101041111561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9133320.

The product of its (nonzero) digits is 120, while the sum is 22.

Adding to 101041111561 its reverse (165111140101), we get a palindrome (266152251662).

The spelling of 101041111561 in words is "one hundred one billion, forty-one million, one hundred eleven thousand, five hundred sixty-one".