21233123003 has 8 divisors (see below), whose sum is σ = 22189939200. Its totient is φ = 20279109928.

The previous prime is 21233122987. The next prime is 21233123047. The reversal of 21233123003 is 30032133212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21233123003 - 2⁴ = 21233122987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21233125003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 685283 + ... + 715596.

It is an arithmetic number, because the mean of its divisors is an integer number (2773742400).

Almost surely, 2^21233123003 is an apocalyptic number.

21233123003 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

21233123003 is a deficient number, since it is larger than the sum of its proper divisors (956816197).

21233123003 is a wasteful number, since it uses less digits than its factorization.

21233123003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1401561.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 21233123003 its reverse (30032133212), we get a palindrome (51265256215).

The spelling of 21233123003 in words is "twenty-one billion, two hundred thirty-three million, one hundred twenty-three thousand, three".