100001233 has 4 divisors (see below), whose sum is σ = 100553908. Its totient is φ = 99448560.

The previous prime is 100001227. The next prime is 100001303. The reversal of 100001233 is 332100001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 332100001 = 109 ⋅3046789.

It can be written as a sum of positive squares in 2 ways, for example, as 6066369 + 93934864 = 2463^2 + 9692^2 .

It is a cyclic number.

It is not a de Polignac number, because 100001233 - 2⁹ = 100000721 is a prime.

It is a Duffinian number.

100001233 is a modest number, since divided by 1233 gives 1 as remainder.

It is not an unprimeable number, because it can be changed into a prime (100001203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 276066 + ... + 276427.

It is an arithmetic number, because the mean of its divisors is an integer number (25138477).

Almost surely, 2^100001233 is an apocalyptic number.

It is an amenable number.

100001233 is a deficient number, since it is larger than the sum of its proper divisors (552675).

100001233 is an equidigital number, since it uses as much as digits as its factorization.

100001233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552674.

The product of its (nonzero) digits is 18, while the sum is 10.

The square root of 100001233 is about 10000.0616498100. The cubic root of 100001233 is about 464.1607910464.

Adding to 100001233 its reverse (332100001), we get a palindrome (432101234).

The spelling of 100001233 in words is "one hundred million, one thousand, two hundred thirty-three".