21333301323330 has 32 divisors (see below), whose sum is σ = 52851533603328. Its totient is φ = 5505368083200.

The previous prime is 21333301323247. The next prime is 21333301323407. The reversal of 21333301323330 is 3332310333312.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11469515911 + ... + 11469517770.

It is an arithmetic number, because the mean of its divisors is an integer number (1651610425104).

Almost surely, 2^{21333301323330} is an apocalyptic number.

21333301323330 is an abundant number, since it is smaller than the sum of its proper divisors (31518232279998).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21333301323330 is a wasteful number, since it uses less digits than its factorization.

21333301323330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22939033722.

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

Adding to 21333301323330 its reverse (3332310333312), we get a palindrome (24665611656642).

The spelling of 21333301323330 in words is "twenty-one trillion, three hundred thirty-three billion, three hundred one million, three hundred twenty-three thousand, three hundred thirty".