100021320233 has 2 divisors, whose sum is σ = 100021320234. Its totient is φ = 100021320232.

The previous prime is 100021320211. The next prime is 100021320263. The reversal of 100021320233 is 332023120001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60689307904 + 39332012329 = 246352^2 + 198323^2 .

It is a cyclic number.

It is not a de Polignac number, because 100021320233 - 2¹² = 100021316137 is a prime.

It is not a weakly prime, because it can be changed into another prime (100021320263) 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 as a sum of consecutive naturals, namely, 50010660116 + 50010660117.

It is an arithmetic number, because the mean of its divisors is an integer number (50010660117).

Almost surely, 2^100021320233 is an apocalyptic number.

It is an amenable number.

100021320233 is a deficient number, since it is larger than the sum of its proper divisors (1).

100021320233 is an equidigital number, since it uses as much as digits as its factorization.

100021320233 is an odious number, because the sum of its binary digits is odd.

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

Adding to 100021320233 its reverse (332023120001), we get a palindrome (432044440234).

The spelling of 100021320233 in words is "one hundred billion, twenty-one million, three hundred twenty thousand, two hundred thirty-three".