100203310303221 has 16 divisors (see below), whose sum is σ = 137933585399808. Its totient is φ = 64638225783600.

The previous prime is 100203310303219. The next prime is 100203310303237. The reversal of 100203310303221 is 122303013302001.

It is not a de Polignac number, because 100203310303221 - 2¹ = 100203310303219 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100203310304221) 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, 74926845 + ... + 76252466.

It is an arithmetic number, because the mean of its divisors is an integer number (8620849087488).

Almost surely, 2^{100203310303221} is an apocalyptic number.

It is an amenable number.

100203310303221 is a deficient number, since it is larger than the sum of its proper divisors (37730275096587).

100203310303221 is a wasteful number, since it uses less digits than its factorization.

100203310303221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151186472.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 100203310303221 its reverse (122303013302001), we get a palindrome (222506323605222).

The spelling of 100203310303221 in words is "one hundred trillion, two hundred three billion, three hundred ten million, three hundred three thousand, two hundred twenty-one".