1100100985 has 8 divisors (see below), whose sum is σ = 1322350920. Its totient is φ = 878594304.

The previous prime is 1100100979. The next prime is 1100100997. The reversal of 1100100985 is 5890010011.

It can be written as a sum of positive squares in 4 ways, for example, as 31595641 + 1068505344 = 5621^2 + 32688^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1100100985 - 2⁷ = 1100100857 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 182550 + ... + 188479.

It is an arithmetic number, because the mean of its divisors is an integer number (165293865).

Almost surely, 2^1100100985 is an apocalyptic number.

It is an amenable number.

1100100985 is a deficient number, since it is larger than the sum of its proper divisors (222249935).

1100100985 is an equidigital number, since it uses as much as digits as its factorization.

1100100985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371627.

The product of its (nonzero) digits is 360, while the sum is 25.

The square root of 1100100985 is about 33167.7702747713. The cubic root of 1100100985 is about 1032.3117038253.

Adding to 1100100985 its reverse (5890010011), we get a palindrome (6990110996).

The spelling of 1100100985 in words is "one billion, one hundred million, one hundred thousand, nine hundred eighty-five".