1100551105601 has 4 divisors (see below), whose sum is σ = 1100556474672. Its totient is φ = 1100545736532.

The previous prime is 1100551105553. The next prime is 1100551105603. The reversal of 1100551105601 is 1065011550011.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1100551105601 - 2¹⁰ = 1100551104577 is a prime.

It is a super-3 number, since 3×1100551105601³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1100551105603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2364335 + ... + 2791268.

It is an arithmetic number, because the mean of its divisors is an integer number (275139118668).

Almost surely, 2^{1100551105601} is an apocalyptic number.

It is an amenable number.

1100551105601 is a deficient number, since it is larger than the sum of its proper divisors (5369071).

1100551105601 is an equidigital number, since it uses as much as digits as its factorization.

1100551105601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5369070.

The product of its (nonzero) digits is 750, while the sum is 26.

Adding to 1100551105601 its reverse (1065011550011), we get a palindrome (2165562655612).

The spelling of 1100551105601 in words is "one trillion, one hundred billion, five hundred fifty-one million, one hundred five thousand, six hundred one".