100012001003 has 16 divisors (see below), whose sum is σ = 102446535360. Its totient is φ = 97607752704.

The previous prime is 100012000993. The next prime is 100012001087. The reversal of 100012001003 is 300100210001.

It is a cyclic number.

It is not a de Polignac number, because 100012001003 - 2¹⁰ = 100011999979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (100012001603) 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 15 ways as a sum of consecutive naturals, for example, 11191325 + ... + 11200257.

It is an arithmetic number, because the mean of its divisors is an integer number (6402908460).

Almost surely, 2^100012001003 is an apocalyptic number.

100012001003 is a deficient number, since it is larger than the sum of its proper divisors (2434534357).

100012001003 is a wasteful number, since it uses less digits than its factorization.

100012001003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10598.

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

Adding to 100012001003 its reverse (300100210001), we get a palindrome (400112211004).

The spelling of 100012001003 in words is "one hundred billion, twelve million, one thousand, three".