21133331030323 has 2 divisors, whose sum is σ = 21133331030324. Its totient is φ = 21133331030322.

The previous prime is 21133331030321. The next prime is 21133331030369. The reversal of 21133331030323 is 32303013333112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21133331030323 - 2¹ = 21133331030321 is a prime.

Together with 21133331030321, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 21133331030291 and 21133331030300.

It is not a weakly prime, because it can be changed into another prime (21133331030321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10566665515161 + 10566665515162.

It is an arithmetic number, because the mean of its divisors is an integer number (10566665515162).

Almost surely, 2^{21133331030323} is an apocalyptic number.

21133331030323 is a deficient number, since it is larger than the sum of its proper divisors (1).

21133331030323 is an equidigital number, since it uses as much as digits as its factorization.

21133331030323 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8748, while the sum is 28.

Adding to 21133331030323 its reverse (32303013333112), we get a palindrome (53436344363435).

The spelling of 21133331030323 in words is "twenty-one trillion, one hundred thirty-three billion, three hundred thirty-one million, thirty thousand, three hundred twenty-three".