1101001000028 has 24 divisors (see below), whose sum is σ = 1931065770480. Its totient is φ = 549268611840.

The previous prime is 1101001000027. The next prime is 1101001000039. The reversal of 1101001000028 is 8200001001011.

It is a junction number, because it is equal to n+sod(n) for n = 1101000999976 and 1101001000021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101001000027) 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, 6444818 + ... + 6613446.

It is an arithmetic number, because the mean of its divisors is an integer number (80461073770).

Almost surely, 2^{1101001000028} is an apocalyptic number.

It is an amenable number.

1101001000028 is a deficient number, since it is larger than the sum of its proper divisors (830064770452).

1101001000028 is a wasteful number, since it uses less digits than its factorization.

1101001000028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172277 (or 172275 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1101001000028 its reverse (8200001001011), we get a palindrome (9301002001039).

The spelling of 1101001000028 in words is "one trillion, one hundred one billion, one million, twenty-eight", and thus it is an aban number.