21933030239 has 8 divisors (see below), whose sum is σ = 22077216960. Its totient is φ = 21789280800.

The previous prime is 21933030211. The next prime is 21933030257. The reversal of 21933030239 is 93203033912.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21933030239 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21933030199 and 21933030208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21933030289) 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, 8372 + ... + 209609.

It is an arithmetic number, because the mean of its divisors is an integer number (2759652120).

Almost surely, 2^21933030239 is an apocalyptic number.

21933030239 is a deficient number, since it is larger than the sum of its proper divisors (144186721).

21933030239 is a wasteful number, since it uses less digits than its factorization.

21933030239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218641.

The product of its (nonzero) digits is 26244, while the sum is 35.

The spelling of 21933030239 in words is "twenty-one billion, nine hundred thirty-three million, thirty thousand, two hundred thirty-nine".