1000001120003 has 4 divisors (see below), whose sum is σ = 1000031727240. Its totient is φ = 999970512768.

The previous prime is 1000001119991. The next prime is 1000001120023. The reversal of 1000001120003 is 3000211000001.

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

It is a cyclic number.

It is not a de Polignac number, because 1000001120003 - 2⁶ = 1000001119939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1000001120023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15254558 + ... + 15319971.

It is an arithmetic number, because the mean of its divisors is an integer number (250007931810).

Almost surely, 2^{1000001120003} is an apocalyptic number.

1000001120003 is a deficient number, since it is larger than the sum of its proper divisors (30607237).

1000001120003 is an equidigital number, since it uses as much as digits as its factorization.

1000001120003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30607236.

The product of its (nonzero) digits is 6, while the sum is 8.

Adding to 1000001120003 its reverse (3000211000001), we get a palindrome (4000212120004).

The spelling of 1000001120003 in words is "one trillion, one million, one hundred twenty thousand, three".