1100055101 has 4 divisors (see below), whose sum is σ = 1100377500. Its totient is φ = 1099732704.

The previous prime is 1100055079. The next prime is 1100055107. The reversal of 1100055101 is 1015500011.

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 176199076 + 923856025 = 13274^2 + 30395^2 .

It is a cyclic number.

It is not a de Polignac number, because 1100055101 - 2¹⁸ = 1099792957 is a prime.

It is a super-2 number, since 2×1100055101² = 2420242450472240402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100055107) 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, 156026 + ... + 162923.

It is an arithmetic number, because the mean of its divisors is an integer number (275094375).

Almost surely, 2^1100055101 is an apocalyptic number.

It is an amenable number.

1100055101 is a deficient number, since it is larger than the sum of its proper divisors (322399).

1100055101 is an equidigital number, since it uses as much as digits as its factorization.

1100055101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322398.

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

The square root of 1100055101 is about 33167.0785719816. The cubic root of 1100055101 is about 1032.2973514312.

Adding to 1100055101 its reverse (1015500011), we get a palindrome (2115555112).

The spelling of 1100055101 in words is "one billion, one hundred million, fifty-five thousand, one hundred one".