21332113210123 has 2 divisors, whose sum is σ = 21332113210124. Its totient is φ = 21332113210122.

The previous prime is 21332113210099. The next prime is 21332113210129. The reversal of 21332113210123 is 32101231123312.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21332113210123 - 2¹⁷ = 21332113079051 is a prime.

It is not a weakly prime, because it can be changed into another prime (21332113210129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10666056605061 + 10666056605062.

It is an arithmetic number, because the mean of its divisors is an integer number (10666056605062).

Almost surely, 2^{21332113210123} is an apocalyptic number.

21332113210123 is a deficient number, since it is larger than the sum of its proper divisors (1).

21332113210123 is an equidigital number, since it uses as much as digits as its factorization.

21332113210123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 21332113210123 its reverse (32101231123312), we get a palindrome (53433344333435).

The spelling of 21332113210123 in words is "twenty-one trillion, three hundred thirty-two billion, one hundred thirteen million, two hundred ten thousand, one hundred twenty-three".