21330123102213 has 16 divisors (see below), whose sum is σ = 28926336010560. Its totient is φ = 13977065051136.

The previous prime is 21330123102193. The next prime is 21330123102229. The reversal of 21330123102213 is 31220132103312.

It is not a de Polignac number, because 21330123102213 - 2¹² = 21330123098117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21330123102313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7373020 + ... + 9849957.

It is an arithmetic number, because the mean of its divisors is an integer number (1807896000660).

Almost surely, 2^{21330123102213} is an apocalyptic number.

It is an amenable number.

21330123102213 is a deficient number, since it is larger than the sum of its proper divisors (7596212908347).

21330123102213 is a wasteful number, since it uses less digits than its factorization.

21330123102213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17230036.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 21330123102213 its reverse (31220132103312), we get a palindrome (52550255205525).

The spelling of 21330123102213 in words is "twenty-one trillion, three hundred thirty billion, one hundred twenty-three million, one hundred two thousand, two hundred thirteen".