21334312330 has 8 divisors (see below), whose sum is σ = 38401762212. Its totient is φ = 8533724928.

The previous prime is 21334312327. The next prime is 21334312343. The reversal of 21334312330 is 3321343312.

It can be written as a sum of positive squares in 2 ways, for example, as 20618375281 + 715937049 = 143591^2 + 26757^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 21334312295 and 21334312304.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1066715607 + ... + 1066715626.

Almost surely, 2^21334312330 is an apocalyptic number.

21334312330 is a deficient number, since it is larger than the sum of its proper divisors (17067449882).

21334312330 is a wasteful number, since it uses less digits than its factorization.

21334312330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2133431240.

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 21334312330 its reverse (3321343312), we get a palindrome (24655655642).

The spelling of 21334312330 in words is "twenty-one billion, three hundred thirty-four million, three hundred twelve thousand, three hundred thirty".