21333010312111 has 2 divisors, whose sum is σ = 21333010312112. Its totient is φ = 21333010312110.

The previous prime is 21333010312093. The next prime is 21333010312127. The reversal of 21333010312111 is 11121301033312.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21333010312111 - 2⁵ = 21333010312079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21333010312711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10666505156055 + 10666505156056.

It is an arithmetic number, because the mean of its divisors is an integer number (10666505156056).

Almost surely, 2^{21333010312111} is an apocalyptic number.

21333010312111 is a deficient number, since it is larger than the sum of its proper divisors (1).

21333010312111 is an equidigital number, since it uses as much as digits as its factorization.

21333010312111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 21333010312111 its reverse (11121301033312), we get a palindrome (32454311345423).

The spelling of 21333010312111 in words is "twenty-one trillion, three hundred thirty-three billion, ten million, three hundred twelve thousand, one hundred eleven".