1001003212103 has 4 divisors (see below), whose sum is σ = 1017413100888. Its totient is φ = 984593323320.

The previous prime is 1001003212073. The next prime is 1001003212129. The reversal of 1001003212103 is 3012123001001.

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 1001003212103 - 2²⁶ = 1000936103239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001003212133) 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, 8204944301 + ... + 8204944422.

It is an arithmetic number, because the mean of its divisors is an integer number (254353275222).

Almost surely, 2^{1001003212103} is an apocalyptic number.

1001003212103 is a deficient number, since it is larger than the sum of its proper divisors (16409888785).

1001003212103 is an equidigital number, since it uses as much as digits as its factorization.

1001003212103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16409888784.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 1001003212103 its reverse (3012123001001), we get a palindrome (4013126213104).

The spelling of 1001003212103 in words is "one trillion, one billion, three million, two hundred twelve thousand, one hundred three".