21330302212323 has 64 divisors (see below), whose sum is σ = 34365135866880. Its totient is φ = 12997581698304.

The previous prime is 21330302212243. The next prime is 21330302212337. The reversal of 21330302212323 is 32321220303312.

21330302212323 is a `hidden beast` number, since 2 + 1 + 3 + 30 + 302 + 2 + 1 + 2 + 323 = 666.

It is not a de Polignac number, because 21330302212323 - 2⁹ = 21330302211811 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (21330302212523) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 450334240 + ... + 450381602.

It is an arithmetic number, because the mean of its divisors is an integer number (536955247920).

Almost surely, 2^{21330302212323} is an apocalyptic number.

21330302212323 is a deficient number, since it is larger than the sum of its proper divisors (13034833654557).

21330302212323 is a wasteful number, since it uses less digits than its factorization.

21330302212323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59945 (or 59939 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 27.

Adding to 21330302212323 its reverse (32321220303312), we get a palindrome (53651522515635).

The spelling of 21330302212323 in words is "twenty-one trillion, three hundred thirty billion, three hundred two million, two hundred twelve thousand, three hundred twenty-three".