1000001000002 has 4 divisors (see below), whose sum is σ = 1500001500006. Its totient is φ = 500000500000.

The previous prime is 1000000999999. The next prime is 1000001000021. The reversal of 1000001000002 is 2000001000001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 797843754841 + 202157245161 = 893221^2 + 449619^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1000000999955 and 1000001000000.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 250000249999 + ... + 250000250002.

Almost surely, 2^{1000001000002} is an apocalyptic number.

1000001000002 is a deficient number, since it is larger than the sum of its proper divisors (500000500004).

1000001000002 is an equidigital number, since it uses as much as digits as its factorization.

1000001000002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500000500003.

The product of its (nonzero) digits is 2, while the sum is 4.

Adding to 1000001000002 its reverse (2000001000001), we get a palindrome (3000002000003).

Subtracting 1000001000002 from its reverse (2000001000001), we obtain a palindrome (999999999999).

The spelling of 1000001000002 in words is "one trillion, one million, two", and thus it is an aban number and an uban number.