1011100055 has 12 divisors (see below), whose sum is σ = 1411413480. Its totient is φ = 693325584.

The previous prime is 1011100043. The next prime is 1011100091. The reversal of 1011100055 is 5500011101.

It is not a de Polignac number, because 1011100055 - 2¹⁰ = 1011099031 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2063225 + ... + 2063714.

It is an arithmetic number, because the mean of its divisors is an integer number (117617790).

Almost surely, 2^1011100055 is an apocalyptic number.

1011100055 is a deficient number, since it is larger than the sum of its proper divisors (400313425).

1011100055 is an equidigital number, since it uses as much as digits as its factorization.

1011100055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4126958 (or 4126951 counting only the distinct ones).

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

The square root of 1011100055 is about 31797.7995307851. The cubic root of 1011100055 is about 1003.6864120009.

Adding to 1011100055 its reverse (5500011101), we get a palindrome (6511111156).

The spelling of 1011100055 in words is "one billion, eleven million, one hundred thousand, fifty-five".