21301233233323 has 2 divisors, whose sum is σ = 21301233233324. Its totient is φ = 21301233233322.

The previous prime is 21301233233311. The next prime is 21301233233347. The reversal of 21301233233323 is 32333233210312.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21301233233323 is a prime.

It is not a weakly prime, because it can be changed into another prime (21301233233393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10650616616661 + 10650616616662.

It is an arithmetic number, because the mean of its divisors is an integer number (10650616616662).

Almost surely, 2^{21301233233323} is an apocalyptic number.

21301233233323 is a deficient number, since it is larger than the sum of its proper divisors (1).

21301233233323 is an equidigital number, since it uses as much as digits as its factorization.

21301233233323 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34992, while the sum is 31.

Adding to 21301233233323 its reverse (32333233210312), we get a palindrome (53634466443635).

The spelling of 21301233233323 in words is "twenty-one trillion, three hundred one billion, two hundred thirty-three million, two hundred thirty-three thousand, three hundred twenty-three".