21323302120030 has 32 divisors (see below), whose sum is σ = 38832505319520. Its totient is φ = 8429291397120.

The previous prime is 21323302120019. The next prime is 21323302120039. The reversal of 21323302120030 is 3002120332312.

It is a junction number, because it is equal to n+sod(n) for n = 21323302119983 and 21323302120010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21323302120039) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4167139 + ... + 7746718.

It is an arithmetic number, because the mean of its divisors is an integer number (1213515791235).

Almost surely, 2^{21323302120030} is an apocalyptic number.

21323302120030 is a deficient number, since it is larger than the sum of its proper divisors (17509203199490).

21323302120030 is a wasteful number, since it uses less digits than its factorization.

21323302120030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11915964.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 21323302120030 its reverse (3002120332312), we get a palindrome (24325422452342).

The spelling of 21323302120030 in words is "twenty-one trillion, three hundred twenty-three billion, three hundred two million, one hundred twenty thousand, thirty".