100203220133 has 4 divisors (see below), whose sum is σ = 100212318240. Its totient is φ = 100194122028.

The previous prime is 100203220127. The next prime is 100203220141. The reversal of 100203220133 is 331022302001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 100203220133 - 2¹⁸ = 100202957989 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 (100203220633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4532513 + ... + 4554566.

It is an arithmetic number, because the mean of its divisors is an integer number (25053079560).

Almost surely, 2^100203220133 is an apocalyptic number.

It is an amenable number.

100203220133 is a deficient number, since it is larger than the sum of its proper divisors (9098107).

100203220133 is an equidigital number, since it uses as much as digits as its factorization.

100203220133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9098106.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 100203220133 its reverse (331022302001), we get a palindrome (431225522134).

The spelling of 100203220133 in words is "one hundred billion, two hundred three million, two hundred twenty thousand, one hundred thirty-three".