21103032302111 has 2 divisors, whose sum is σ = 21103032302112. Its totient is φ = 21103032302110.

The previous prime is 21103032302101. The next prime is 21103032302239. The reversal of 21103032302111 is 11120323030112.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21103032302111 - 2⁶ = 21103032302047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21103032302101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10551516151055 + 10551516151056.

It is an arithmetic number, because the mean of its divisors is an integer number (10551516151056).

Almost surely, 2^{21103032302111} is an apocalyptic number.

21103032302111 is a deficient number, since it is larger than the sum of its proper divisors (1).

21103032302111 is an equidigital number, since it uses as much as digits as its factorization.

21103032302111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 21103032302111 its reverse (11120323030112), we get a palindrome (32223355332223).

The spelling of 21103032302111 in words is "twenty-one trillion, one hundred three billion, thirty-two million, three hundred two thousand, one hundred eleven".