1011005550105 has 16 divisors (see below), whose sum is σ = 1617772793280. Its totient is φ = 539148322368.

The previous prime is 1011005550103. The next prime is 1011005550109. The reversal of 1011005550105 is 5010555001101.

It is not a de Polignac number, because 1011005550105 - 2¹ = 1011005550103 is a prime.

It is a super-2 number, since 2×1011005550105² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1011005550103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3261670 + ... + 3558159.

It is an arithmetic number, because the mean of its divisors is an integer number (101110799580).

Almost surely, 2^{1011005550105} is an apocalyptic number.

1011005550105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1011005550105 is a deficient number, since it is larger than the sum of its proper divisors (606767243175).

1011005550105 is an equidigital number, since it uses as much as digits as its factorization.

1011005550105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6829720.

The product of its (nonzero) digits is 625, while the sum is 24.

The spelling of 1011005550105 in words is "one trillion, eleven billion, five million, five hundred fifty thousand, one hundred five".