100203323221 has 16 divisors (see below), whose sum is σ = 104846860800. Its totient is φ = 95584067568.

The previous prime is 100203323197. The next prime is 100203323251. The reversal of 100203323221 is 122323302001.

It is a cyclic number.

It is not a de Polignac number, because 100203323221 - 2¹⁹ = 100202798933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100203323251) 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, 14504050 + ... + 14510956.

It is an arithmetic number, because the mean of its divisors is an integer number (6552928800).

Almost surely, 2^100203323221 is an apocalyptic number.

It is an amenable number.

100203323221 is a deficient number, since it is larger than the sum of its proper divisors (4643537579).

100203323221 is a wasteful number, since it uses less digits than its factorization.

100203323221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8568.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 100203323221 its reverse (122323302001), we get a palindrome (222526625222).

The spelling of 100203323221 in words is "one hundred billion, two hundred three million, three hundred twenty-three thousand, two hundred twenty-one".