21230333323333 has 16 divisors (see below), whose sum is σ = 22218283008000. Its totient is φ = 20262910464000.

The previous prime is 21230333323321. The next prime is 21230333323387. The reversal of 21230333323333 is 33332333303212.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 21230333323333 - 2¹⁷ = 21230333192261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21230333323393) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12387333 + ... + 13996666.

It is an arithmetic number, because the mean of its divisors is an integer number (1388642688000).

Almost surely, 2^{21230333323333} is an apocalyptic number.

It is an amenable number.

21230333323333 is a deficient number, since it is larger than the sum of its proper divisors (987949684667).

21230333323333 is a wasteful number, since it uses less digits than its factorization.

21230333323333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26384388.

The product of its (nonzero) digits is 157464, while the sum is 34.

Adding to 21230333323333 its reverse (33332333303212), we get a palindrome (54562666626545).

The spelling of 21230333323333 in words is "twenty-one trillion, two hundred thirty billion, three hundred thirty-three million, three hundred twenty-three thousand, three hundred thirty-three".