11101000560561 has 24 divisors (see below), whose sum is σ = 16070547143040. Its totient is φ = 7384159855296.

The previous prime is 11101000560511. The next prime is 11101000560589. The reversal of 11101000560561 is 16506500010111.

It is not a de Polignac number, because 11101000560561 - 2¹⁷ = 11101000429489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11101000560511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 136605580 + ... + 136686818.

It is an arithmetic number, because the mean of its divisors is an integer number (669606130960).

Almost surely, 2^{11101000560561} is an apocalyptic number.

It is an amenable number.

11101000560561 is a deficient number, since it is larger than the sum of its proper divisors (4969546582479).

11101000560561 is a wasteful number, since it uses less digits than its factorization.

11101000560561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114925 (or 114922 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 27.

Adding to 11101000560561 its reverse (16506500010111), we get a palindrome (27607500570672).

The spelling of 11101000560561 in words is "eleven trillion, one hundred one billion, five hundred sixty thousand, five hundred sixty-one".