100233020021 has 8 divisors (see below), whose sum is σ = 102130569144. Its totient is φ = 98335706560.

The previous prime is 100233019973. The next prime is 100233020047. The reversal of 100233020021 is 120020332001.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 74005217521 + 26227802500 = 272039^2 + 161950^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100233020021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100233019978 and 100233020005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100233023021) 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 7 ways as a sum of consecutive naturals, for example, 967295 + ... + 1065891.

It is an arithmetic number, because the mean of its divisors is an integer number (12766321143).

Almost surely, 2^100233020021 is an apocalyptic number.

It is an amenable number.

100233020021 is a deficient number, since it is larger than the sum of its proper divisors (1897549123).

100233020021 is an equidigital number, since it uses as much as digits as its factorization.

100233020021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117831.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 100233020021 its reverse (120020332001), we get a palindrome (220253352022).

The spelling of 100233020021 in words is "one hundred billion, two hundred thirty-three million, twenty thousand, twenty-one".