100021002103 has 16 divisors (see below), whose sum is σ = 115597679904. Its totient is φ = 85531023360.

The previous prime is 100021002097. The next prime is 100021002113. The reversal of 100021002103 is 301200120001.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100021002103 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 100021002103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100021002113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 181801 + ... + 482797.

It is an arithmetic number, because the mean of its divisors is an integer number (7224854994).

Almost surely, 2^100021002103 is an apocalyptic number.

100021002103 is a deficient number, since it is larger than the sum of its proper divisors (15576677801).

100021002103 is a wasteful number, since it uses less digits than its factorization.

100021002103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302802.

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 100021002103 its reverse (301200120001), we get a palindrome (401221122104).

The spelling of 100021002103 in words is "one hundred billion, twenty-one million, two thousand, one hundred three".