21324102402011 has 2 divisors, whose sum is σ = 21324102402012. Its totient is φ = 21324102402010.

The previous prime is 21324102401971. The next prime is 21324102402013. The reversal of 21324102402011 is 11020420142312.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21324102402011 - 2¹⁰ = 21324102400987 is a prime.

Together with 21324102402013, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (21324102402013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10662051201005 + 10662051201006.

It is an arithmetic number, because the mean of its divisors is an integer number (10662051201006).

Almost surely, 2^{21324102402011} is an apocalyptic number.

21324102402011 is a deficient number, since it is larger than the sum of its proper divisors (1).

21324102402011 is an equidigital number, since it uses as much as digits as its factorization.

21324102402011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 21324102402011 its reverse (11020420142312), we get a palindrome (32344522544323).

The spelling of 21324102402011 in words is "twenty-one trillion, three hundred twenty-four billion, one hundred two million, four hundred two thousand, eleven".