1120100055 has 16 divisors (see below), whose sum is σ = 1792575360. Its totient is φ = 597248288.

The previous prime is 1120100053. The next prime is 1120100087. The reversal of 1120100055 is 5500010211.

It is a cyclic number.

It is not a de Polignac number, because 1120100055 - 2¹ = 1120100053 is a prime.

It is a super-2 number, since 2×1120100055² = 2509248266422006050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1120100053) 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 15 ways as a sum of consecutive naturals, for example, 119116 + ... + 128174.

It is an arithmetic number, because the mean of its divisors is an integer number (112035960).

Almost surely, 2^1120100055 is an apocalyptic number.

1120100055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1120100055 is a deficient number, since it is larger than the sum of its proper divisors (672475305).

1120100055 is an equidigital number, since it uses as much as digits as its factorization.

1120100055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17310.

The product of its (nonzero) digits is 50, while the sum is 15.

The square root of 1120100055 is about 33467.8958854601. The cubic root of 1120100055 is about 1038.5297441516.

Adding to 1120100055 its reverse (5500010211), we get a palindrome (6620110266).

The spelling of 1120100055 in words is "one billion, one hundred twenty million, one hundred thousand, fifty-five".