11100550001 has 4 divisors (see below), whose sum is σ = 11100988404. Its totient is φ = 11100111600.

The previous prime is 11100549991. The next prime is 11100550031. The reversal of 11100550001 is 10005500111.

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 985018225 + 10115531776 = 31385^2 + 100576^2 .

It is a cyclic number.

It is not a de Polignac number, because 11100550001 - 2⁶ = 11100549937 is a prime.

It is a super-2 number, since 2×11100550001² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11100550031) 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, 178730 + ... + 232691.

It is an arithmetic number, because the mean of its divisors is an integer number (2775247101).

Almost surely, 2^11100550001 is an apocalyptic number.

It is an amenable number.

11100550001 is a deficient number, since it is larger than the sum of its proper divisors (438403).

11100550001 is an equidigital number, since it uses as much as digits as its factorization.

11100550001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438402.

The product of its (nonzero) digits is 25, while the sum is 14.

The spelling of 11100550001 in words is "eleven billion, one hundred million, five hundred fifty thousand, one".