1100010001005 has 24 divisors (see below), whose sum is σ = 1972431728280. Its totient is φ = 566441930880.

The previous prime is 1100010001003. The next prime is 1100010001019. The reversal of 1100010001005 is 5001000100011.

It can be written as a sum of positive squares in 4 ways, for example, as 1676656809 + 1098333344196 = 40947^2 + 1048014^2 .

It is not a de Polignac number, because 1100010001005 - 2¹ = 1100010001003 is a prime.

It is a super-2 number, since 2×1100010001005² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100010001001) 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 23 ways as a sum of consecutive naturals, for example, 421458466 + ... + 421461075.

It is an arithmetic number, because the mean of its divisors is an integer number (82184655345).

Almost surely, 2^{1100010001005} is an apocalyptic number.

1100010001005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1100010001005 is a deficient number, since it is larger than the sum of its proper divisors (872421727275).

1100010001005 is a wasteful number, since it uses less digits than its factorization.

1100010001005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 842919581 (or 842919578 counting only the distinct ones).

The product of its (nonzero) digits is 5, while the sum is 9.

Adding to 1100010001005 its reverse (5001000100011), we get a palindrome (6101010101016).

The spelling of 1100010001005 in words is "one trillion, one hundred billion, ten million, one thousand, five".