21321233030203 has 8 divisors (see below), whose sum is σ = 21398180885136. Its totient is φ = 21244423200000.

The previous prime is 21321233030189. The next prime is 21321233030323. The reversal of 21321233030203 is 30203033212312.

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 21321233030203 - 2⁵ = 21321233030171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21321233033203) 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, 34196673 + ... + 34814578.

It is an arithmetic number, because the mean of its divisors is an integer number (2674772610642).

Almost surely, 2^{21321233030203} is an apocalyptic number.

21321233030203 is a deficient number, since it is larger than the sum of its proper divisors (76947854933).

21321233030203 is an equidigital number, since it uses as much as digits as its factorization.

21321233030203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69012365.

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 21321233030203 its reverse (30203033212312), we get a palindrome (51524266242515).

The spelling of 21321233030203 in words is "twenty-one trillion, three hundred twenty-one billion, two hundred thirty-three million, thirty thousand, two hundred three".