21233230203203 has 16 divisors (see below), whose sum is σ = 21668419049760. Its totient is φ = 20802837110016.

The previous prime is 21233230203197. The next prime is 21233230203223. The reversal of 21233230203203 is 30230203233212.

It is a cyclic number.

It is not a de Polignac number, because 21233230203203 - 2⁴ = 21233230203187 is a prime.

It is a super-2 number, since 2×21233230203203² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21233230203223) 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, 5032151 + ... + 8233407.

It is an arithmetic number, because the mean of its divisors is an integer number (1354276190610).

Almost surely, 2^{21233230203203} is an apocalyptic number.

21233230203203 is a deficient number, since it is larger than the sum of its proper divisors (435188846557).

21233230203203 is a wasteful number, since it uses less digits than its factorization.

21233230203203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3202006.

The product of its (nonzero) digits is 7776, while the sum is 26.

Adding to 21233230203203 its reverse (30230203233212), we get a palindrome (51463433436415).

The spelling of 21233230203203 in words is "twenty-one trillion, two hundred thirty-three billion, two hundred thirty million, two hundred three thousand, two hundred three".