1001233223 has 4 divisors (see below), whose sum is σ = 1010093808. Its totient is φ = 992372640.

The previous prime is 1001233201. The next prime is 1001233231. The reversal of 1001233223 is 3223321001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1001233223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001238223) 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 3 ways as a sum of consecutive naturals, for example, 4430123 + ... + 4430348.

It is an arithmetic number, because the mean of its divisors is an integer number (252523452).

Almost surely, 2^1001233223 is an apocalyptic number.

1001233223 is a deficient number, since it is larger than the sum of its proper divisors (8860585).

1001233223 is an equidigital number, since it uses as much as digits as its factorization.

1001233223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8860584.

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

The square root of 1001233223 is about 31642.2695614585. The cubic root of 1001233223 is about 1000.4109054669.

Adding to 1001233223 its reverse (3223321001), we get a palindrome (4224554224).

The spelling of 1001233223 in words is "one billion, one million, two hundred thirty-three thousand, two hundred twenty-three".