11101050561 has 8 divisors (see below), whose sum is σ = 15580421920. Its totient is φ = 7011189792.

The previous prime is 11101050559. The next prime is 11101050601. The reversal of 11101050561 is 16505010111.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11101050561 - 2¹ = 11101050559 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11101050361) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97377580 + ... + 97377693.

It is an arithmetic number, because the mean of its divisors is an integer number (1947552740).

Almost surely, 2^11101050561 is an apocalyptic number.

It is an amenable number.

11101050561 is a deficient number, since it is larger than the sum of its proper divisors (4479371359).

11101050561 is a wasteful number, since it uses less digits than its factorization.

11101050561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194755295.

The product of its (nonzero) digits is 150, while the sum is 21.

Adding to 11101050561 its reverse (16505010111), we get a palindrome (27606060672).

The spelling of 11101050561 in words is "eleven billion, one hundred one million, fifty thousand, five hundred sixty-one".