21323302012330 has 24 divisors (see below), whose sum is σ = 38963358755748. Its totient is φ = 8402017491648.

The previous prime is 21323302012307. The next prime is 21323302012351. The reversal of 21323302012330 is 3321020332312.

It can be written as a sum of positive squares in 2 ways, for example, as 21312081483001 + 11220529329 = 4616501^2 + 105927^2 .

It is a junction number, because it is equal to n+sod(n) for n = 21323302012295 and 21323302012304.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 237461259 + ... + 237551038.

Almost surely, 2^{21323302012330} is an apocalyptic number.

21323302012330 is a deficient number, since it is larger than the sum of its proper divisors (17640056743418).

21323302012330 is an equidigital number, since it uses as much as digits as its factorization.

21323302012330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475012438 (or 475012371 counting only the distinct ones).

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

Adding to 21323302012330 its reverse (3321020332312), we get a palindrome (24644322344642).

The spelling of 21323302012330 in words is "twenty-one trillion, three hundred twenty-three billion, three hundred two million, twelve thousand, three hundred thirty".