1100001000028 has 24 divisors (see below), whose sum is σ = 2295654262272. Its totient is φ = 450932086704.

The previous prime is 1100001000023. The next prime is 1100001000029. The reversal of 1100001000028 is 8200001000011.

It is a junction number, because it is equal to n+sod(n) for n = 1100000999981 and 1100001000017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100001000023) 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 7 ways as a sum of consecutive naturals, for example, 854037400 + ... + 854038687.

It is an arithmetic number, because the mean of its divisors is an integer number (95652260928).

Almost surely, 2^{1100001000028} is an apocalyptic number.

It is an amenable number.

1100001000028 is an abundant number, since it is smaller than the sum of its proper divisors (1195653262244).

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

1100001000028 is a wasteful number, since it uses less digits than its factorization.

1100001000028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1708076121 (or 1708076119 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1100001000028 its reverse (8200001000011), we get a palindrome (9300002000039).

The spelling of 1100001000028 in words is "one trillion, one hundred billion, one million, twenty-eight", and thus it is an aban number.