100203223021 has 8 divisors (see below), whose sum is σ = 109326952800. Its totient is φ = 91081884240.

The previous prime is 100203222991. The next prime is 100203223039. The reversal of 100203223021 is 120322302001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 100203223021 - 2⁵ = 100203222989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100203222986 and 100203223004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100203223921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 509551 + ... + 678268.

It is an arithmetic number, because the mean of its divisors is an integer number (13665869100).

Almost surely, 2^100203223021 is an apocalyptic number.

100203223021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

100203223021 is a deficient number, since it is larger than the sum of its proper divisors (9123729779).

100203223021 is a wasteful number, since it uses less digits than its factorization.

100203223021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1195499.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 100203223021 its reverse (120322302001), we get a palindrome (220525525022).

The spelling of 100203223021 in words is "one hundred billion, two hundred three million, two hundred twenty-three thousand, twenty-one".