21010101000323 has 2 divisors, whose sum is σ = 21010101000324. Its totient is φ = 21010101000322.

The previous prime is 21010101000313. The next prime is 21010101000331. The reversal of 21010101000323 is 32300010101012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21010101000323 - 2⁴ = 21010101000307 is a prime.

It is a super-2 number, since 2×21010101000323² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21010101000298 and 21010101000307.

It is not a weakly prime, because it can be changed into another prime (21010101000313) 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, 10505050500161 + 10505050500162.

It is an arithmetic number, because the mean of its divisors is an integer number (10505050500162).

Almost surely, 2^{21010101000323} is an apocalyptic number.

21010101000323 is a deficient number, since it is larger than the sum of its proper divisors (1).

21010101000323 is an equidigital number, since it uses as much as digits as its factorization.

21010101000323 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 21010101000323 its reverse (32300010101012), we get a palindrome (53310111101335).

The spelling of 21010101000323 in words is "twenty-one trillion, ten billion, one hundred one million, three hundred twenty-three", and thus it is an aban number.