11100501105601 has 2 divisors, whose sum is σ = 11100501105602. Its totient is φ = 11100501105600.

The previous prime is 11100501105599. The next prime is 11100501105623. The reversal of 11100501105601 is 10650110500111.

It is an a-pointer prime, because the next prime (11100501105623) can be obtained adding 11100501105601 to its sum of digits (22).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10957523346225 + 142977759376 = 3310215^2 + 378124^2 .

It is a cyclic number.

It is not a de Polignac number, because 11100501105601 - 2¹ = 11100501105599 is a prime.

It is a super-2 number, since 2×11100501105601² (a number of 27 digits) contains 22 as substring.

Together with 11100501105599, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (11100501105671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5550250552800 + 5550250552801.

It is an arithmetic number, because the mean of its divisors is an integer number (5550250552801).

Almost surely, 2^{11100501105601} is an apocalyptic number.

It is an amenable number.

11100501105601 is a deficient number, since it is larger than the sum of its proper divisors (1).

11100501105601 is an equidigital number, since it uses as much as digits as its factorization.

11100501105601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 150, while the sum is 22.

Adding to 11100501105601 its reverse (10650110500111), we get a palindrome (21750611605712).

The spelling of 11100501105601 in words is "eleven trillion, one hundred billion, five hundred one million, one hundred five thousand, six hundred one".