21233302003 has 16 divisors (see below), whose sum is σ = 21991685760. Its totient is φ = 20487386304.

The previous prime is 21233301997. The next prime is 21233302019. The reversal of 21233302003 is 30020333212.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21233302003 is a prime.

It is a super-2 number, since 2×21233302003² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21233302093) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5826700 + ... + 5830342.

It is an arithmetic number, because the mean of its divisors is an integer number (1374480360).

Almost surely, 2^21233302003 is an apocalyptic number.

21233302003 is a deficient number, since it is larger than the sum of its proper divisors (758383757).

21233302003 is a wasteful number, since it uses less digits than its factorization.

21233302003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5298.

The product of its (nonzero) digits is 648, while the sum is 19.

Adding to 21233302003 its reverse (30020333212), we get a palindrome (51253635215).

The spelling of 21233302003 in words is "twenty-one billion, two hundred thirty-three million, three hundred two thousand, three".