100433321 has 2 divisors, whose sum is σ = 100433322. Its totient is φ = 100433320.

The previous prime is 100433309. The next prime is 100433323. The reversal of 100433321 is 123334001.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 99301225 + 1132096 = 9965^2 + 1064^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100433321 is a prime.

Together with 100433323, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 100433321.

It is not a weakly prime, because it can be changed into another prime (100433323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50216660 + 50216661.

It is an arithmetic number, because the mean of its divisors is an integer number (50216661).

Almost surely, 2^100433321 is an apocalyptic number.

It is an amenable number.

100433321 is a deficient number, since it is larger than the sum of its proper divisors (1).

100433321 is an equidigital number, since it uses as much as digits as its factorization.

100433321 is an evil number, because the sum of its binary digits is even.

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

The square root of 100433321 is about 10021.6426298287. The cubic root of 100433321 is about 464.8283499490.

Adding to 100433321 its reverse (123334001), we get a palindrome (223767322).

The spelling of 100433321 in words is "one hundred million, four hundred thirty-three thousand, three hundred twenty-one".