21323030333213 has 8 divisors (see below), whose sum is σ = 24373031627328. Its totient is φ = 18273992565024.

The previous prime is 21323030333191. The next prime is 21323030333237. The reversal of 21323030333213 is 31233303032312.

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

It is not a de Polignac number, because 21323030333213 - 2⁶ = 21323030333149 is a prime.

It is a super-2 number, since 2×21323030333213² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21323030333243) 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, 240834056 + ... + 240922577.

It is an arithmetic number, because the mean of its divisors is an integer number (3046628953416).

Almost surely, 2^{21323030333213} is an apocalyptic number.

It is an amenable number.

21323030333213 is a deficient number, since it is larger than the sum of its proper divisors (3050001294115).

21323030333213 is an equidigital number, since it uses as much as digits as its factorization.

21323030333213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481762963.

The product of its (nonzero) digits is 17496, while the sum is 29.

Adding to 21323030333213 its reverse (31233303032312), we get a palindrome (52556333365525).

The spelling of 21323030333213 in words is "twenty-one trillion, three hundred twenty-three billion, thirty million, three hundred thirty-three thousand, two hundred thirteen".