21130202133223 has 2 divisors, whose sum is σ = 21130202133224. Its totient is φ = 21130202133222.

The previous prime is 21130202133221. The next prime is 21130202133251. The reversal of 21130202133223 is 32233120203112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21130202133223 - 2¹ = 21130202133221 is a prime.

Together with 21130202133221, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21130202133221) 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, 10565101066611 + 10565101066612.

It is an arithmetic number, because the mean of its divisors is an integer number (10565101066612).

Almost surely, 2^{21130202133223} is an apocalyptic number.

21130202133223 is a deficient number, since it is larger than the sum of its proper divisors (1).

21130202133223 is an equidigital number, since it uses as much as digits as its factorization.

21130202133223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 21130202133223 its reverse (32233120203112), we get a palindrome (53363322336335).

The spelling of 21130202133223 in words is "twenty-one trillion, one hundred thirty billion, two hundred two million, one hundred thirty-three thousand, two hundred twenty-three".