21313330330233 has 8 divisors (see below), whose sum is σ = 29913446077600. Its totient is φ = 13461050734848.

The previous prime is 21313330330219. The next prime is 21313330330283. The reversal of 21313330330233 is 33203303331312.

It is a happy number.

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

It is not a de Polignac number, because 21313330330233 - 2¹³ = 21313330322041 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21313330330233.

It is not an unprimeable number, because it can be changed into a prime (21313330330283) 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, 186959037928 + ... + 186959038041.

It is an arithmetic number, because the mean of its divisors is an integer number (3739180759700).

Almost surely, 2^{21313330330233} is an apocalyptic number.

It is an amenable number.

21313330330233 is a deficient number, since it is larger than the sum of its proper divisors (8600115747367).

21313330330233 is a wasteful number, since it uses less digits than its factorization.

21313330330233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373918075991.

The product of its (nonzero) digits is 26244, while the sum is 30.

Adding to 21313330330233 its reverse (33203303331312), we get a palindrome (54516633661545).

The spelling of 21313330330233 in words is "twenty-one trillion, three hundred thirteen billion, three hundred thirty million, three hundred thirty thousand, two hundred thirty-three".