21000103233 has 8 divisors (see below), whose sum is σ = 28001034048. Its totient is φ = 13999620624.

The previous prime is 21000103217. The next prime is 21000103237. The reversal of 21000103233 is 33230100012.

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

It is not a de Polignac number, because 21000103233 - 2⁴ = 21000103217 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (21000103237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19260 + ... + 205842.

It is an arithmetic number, because the mean of its divisors is an integer number (3500129256).

Almost surely, 2^21000103233 is an apocalyptic number.

It is an amenable number.

21000103233 is a deficient number, since it is larger than the sum of its proper divisors (7000930815).

21000103233 is a wasteful number, since it uses less digits than its factorization.

21000103233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224103.

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 21000103233 its reverse (33230100012), we get a palindrome (54230203245).

The spelling of 21000103233 in words is "twenty-one billion, one hundred three thousand, two hundred thirty-three".