100021013203 has 4 divisors (see below), whose sum is σ = 100022168080. Its totient is φ = 100019858328.

The previous prime is 100021013177. The next prime is 100021013219. The reversal of 100021013203 is 302310120001.

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 100021013203 - 2¹³ = 100021005011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100021013233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 435975 + ... + 624592.

It is an arithmetic number, because the mean of its divisors is an integer number (25005542020).

Almost surely, 2^100021013203 is an apocalyptic number.

100021013203 is a deficient number, since it is larger than the sum of its proper divisors (1154877).

100021013203 is an equidigital number, since it uses as much as digits as its factorization.

100021013203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1154876.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 100021013203 its reverse (302310120001), we get a palindrome (402331133204).

The spelling of 100021013203 in words is "one hundred billion, twenty-one million, thirteen thousand, two hundred three".