1001233 has 4 divisors (see below), whose sum is σ = 1009008. Its totient is φ = 993460.

The previous prime is 1001219. The next prime is 1001237. The reversal of 1001233 is 3321001.

1001233 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is the 409-th star number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 3321001 = 17 ⋅195353.

It is a cyclic number.

It is not a de Polignac number, because 1001233 - 2⁹ = 1000721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1001237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3691 + ... + 3952.

It is an arithmetic number, because the mean of its divisors is an integer number (252252).

2^1001233 is an apocalyptic number.

It is an amenable number.

1001233 is a deficient number, since it is larger than the sum of its proper divisors (7775).

1001233 is an equidigital number, since it uses as much as digits as its factorization.

1001233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7774.

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

The square root of 1001233 is about 1000.6163100809. The cubic root of 1001233 is about 100.0410831195.

Adding to 1001233 its reverse (3321001), we get a palindrome (4322234).

The spelling of 1001233 in words is "one million, one thousand, two hundred thirty-three".