1000013000028 has 48 divisors (see below), whose sum is σ = 2721123820800. Its totient is φ = 285717998832.

The previous prime is 1000013000017. The next prime is 1000013000033. The reversal of 1000013000028 is 8200003100001.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1000012999980 and 1000013000016.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121474626 + ... + 121482857.

It is an arithmetic number, because the mean of its divisors is an integer number (56690079600).

Almost surely, 2^{1000013000028} is an apocalyptic number.

It is an amenable number.

1000013000028 is an abundant number, since it is smaller than the sum of its proper divisors (1721110820772).

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

1000013000028 is a wasteful number, since it uses less digits than its factorization.

1000013000028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242957511 (or 242957495 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 1000013000028 its reverse (8200003100001), we get a palindrome (9200016100029).

The spelling of 1000013000028 in words is "one trillion, thirteen million, twenty-eight", and thus it is an aban number and an uban number.