21323023321333 has 8 divisors (see below), whose sum is σ = 21340720883520. Its totient is φ = 21305331351360.

The previous prime is 21323023321297. The next prime is 21323023321367. The reversal of 21323023321333 is 33312332032312.

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 21323023321333 - 2²¹ = 21323021224181 is a prime.

It is a super-2 number, since 2×21323023321333² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21323023321295 and 21323023321304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21323023328333) 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, 6248416 + ... + 9038182.

It is an arithmetic number, because the mean of its divisors is an integer number (2667590110440).

Almost surely, 2^{21323023321333} is an apocalyptic number.

It is an amenable number.

21323023321333 is a deficient number, since it is larger than the sum of its proper divisors (17697562187).

21323023321333 is a wasteful number, since it uses less digits than its factorization.

21323023321333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2796107.

The product of its (nonzero) digits is 34992, while the sum is 31.

Adding to 21323023321333 its reverse (33312332032312), we get a palindrome (54635355353645).

The spelling of 21323023321333 in words is "twenty-one trillion, three hundred twenty-three billion, twenty-three million, three hundred twenty-one thousand, three hundred thirty-three".