21321313411 has 2 divisors, whose sum is σ = 21321313412. Its totient is φ = 21321313410.

The previous prime is 21321313399. The next prime is 21321313423. The reversal of 21321313411 is 11431312312.

It is a balanced prime because it is at equal distance from previous prime (21321313399) and next prime (21321313423).

It is a cyclic number.

It is not a de Polignac number, because 21321313411 - 2³³ = 12731378819 is a prime.

It is not a weakly prime, because it can be changed into another prime (21321313441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10660656705 + 10660656706.

It is an arithmetic number, because the mean of its divisors is an integer number (10660656706).

Almost surely, 2^21321313411 is an apocalyptic number.

21321313411 is a deficient number, since it is larger than the sum of its proper divisors (1).

21321313411 is an equidigital number, since it uses as much as digits as its factorization.

21321313411 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 432, while the sum is 22.

Adding to 21321313411 its reverse (11431312312), we get a palindrome (32752625723).

The spelling of 21321313411 in words is "twenty-one billion, three hundred twenty-one million, three hundred thirteen thousand, four hundred eleven".