100021102003 has 4 divisors (see below), whose sum is σ = 100243866600. Its totient is φ = 99798337408.

The previous prime is 100021101989. The next prime is 100021102009. The reversal of 100021102003 is 300201120001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 300201120001 = 367 ⋅817986703.

It is a cyclic number.

It is not a de Polignac number, because 100021102003 - 2⁹ = 100021101491 is a prime.

It is a super-2 number, since 2×100021102003² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100021102009) 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, 111381625 + ... + 111382522.

It is an arithmetic number, because the mean of its divisors is an integer number (25060966650).

Almost surely, 2^100021102003 is an apocalyptic number.

100021102003 is a deficient number, since it is larger than the sum of its proper divisors (222764597).

100021102003 is an equidigital number, since it uses as much as digits as its factorization.

100021102003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222764596.

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

Adding to 100021102003 its reverse (300201120001), we get a palindrome (400222222004).

The spelling of 100021102003 in words is "one hundred billion, twenty-one million, one hundred two thousand, three".