21313333233330 has 32 divisors (see below), whose sum is σ = 51799493433600. Its totient is φ = 5611611787392.

The previous prime is 21313333233301. The next prime is 21313333233331. The reversal of 21313333233330 is 3333233331312.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 21313333233291 and 21313333233300.

It is not an unprimeable number, because it can be changed into a prime (21313333233331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4496481435 + ... + 4496486174.

It is an arithmetic number, because the mean of its divisors is an integer number (1618734169800).

Almost surely, 2^{21313333233330} is an apocalyptic number.

21313333233330 is an abundant number, since it is smaller than the sum of its proper divisors (30486160200270).

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

21313333233330 is a wasteful number, since it uses less digits than its factorization.

21313333233330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8992967698.

The product of its (nonzero) digits is 78732, while the sum is 33.

Adding to 21313333233330 its reverse (3333233331312), we get a palindrome (24646566564642).

The spelling of 21313333233330 in words is "twenty-one trillion, three hundred thirteen billion, three hundred thirty-three million, two hundred thirty-three thousand, three hundred thirty".