21233323323321 has 32 divisors (see below), whose sum is σ = 29507372144640. Its totient is φ = 13569503403456.

The previous prime is 21233323323299. The next prime is 21233323323383. The reversal of 21233323323321 is 12332332333212.

It is not a de Polignac number, because 21233323323321 - 2⁴³ = 12437230301113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21233323323521) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1502610 + ... + 6687636.

It is an arithmetic number, because the mean of its divisors is an integer number (922105379520).

Almost surely, 2^{21233323323321} is an apocalyptic number.

It is an amenable number.

21233323323321 is a deficient number, since it is larger than the sum of its proper divisors (8274048821319).

21233323323321 is a wasteful number, since it uses less digits than its factorization.

21233323323321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5185613.

The product of its digits is 69984, while the sum is 33.

Adding to 21233323323321 its reverse (12332332333212), we get a palindrome (33565655656533).

The spelling of 21233323323321 in words is "twenty-one trillion, two hundred thirty-three billion, three hundred twenty-three million, three hundred twenty-three thousand, three hundred twenty-one".