1100055011 has 4 divisors (see below), whose sum is σ = 1200060024. Its totient is φ = 1000050000.

The previous prime is 1100055001. The next prime is 1100055053. The reversal of 1100055011 is 1105500011.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1100055011 - 2²² = 1095860707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1100055001) 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, 50002490 + ... + 50002511.

It is an arithmetic number, because the mean of its divisors is an integer number (300015006).

Almost surely, 2^1100055011 is an apocalyptic number.

1100055011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1100055011 is a deficient number, since it is larger than the sum of its proper divisors (100005013).

1100055011 is a wasteful number, since it uses less digits than its factorization.

1100055011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100005012.

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

The square root of 1100055011 is about 33167.0772152145. The cubic root of 1100055011 is about 1032.2973232790.

Adding to 1100055011 its reverse (1105500011), we get a palindrome (2205555022).

The spelling of 1100055011 in words is "one billion, one hundred million, fifty-five thousand, eleven".