1100001100128 has 48 divisors (see below), whose sum is σ = 3300003302400. Its totient is φ = 314286028416.

The previous prime is 1100001100127. The next prime is 1100001100129. The reversal of 1100001100128 is 8210011000011.

It is an interprime number because it is at equal distance from previous prime (1100001100127) and next prime (1100001100129).

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100001100123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 818452528 + ... + 818453871.

It is an arithmetic number, because the mean of its divisors is an integer number (68750068800).

Almost surely, 2^{1100001100128} is an apocalyptic number.

It is an amenable number.

1100001100128 is an abundant number, since it is smaller than the sum of its proper divisors (2200002202272).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1100001100128 is a wasteful number, since it uses less digits than its factorization.

1100001100128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1636906419 (or 1636906411 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 1100001100128 its reverse (8210011000011), we get a palindrome (9310012100139).

The spelling of 1100001100128 in words is "one trillion, one hundred billion, one million, one hundred thousand, one hundred twenty-eight".