21113030302193 has 2 divisors, whose sum is σ = 21113030302194. Its totient is φ = 21113030302192.

The previous prime is 21113030302181. The next prime is 21113030302207. The reversal of 21113030302193 is 39120303031112.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20981969649664 + 131060652529 = 4580608^2 + 362023^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21113030302193 is a prime.

It is not a weakly prime, because it can be changed into another prime (21113030302123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10556515151096 + 10556515151097.

It is an arithmetic number, because the mean of its divisors is an integer number (10556515151097).

Almost surely, 2^{21113030302193} is an apocalyptic number.

It is an amenable number.

21113030302193 is a deficient number, since it is larger than the sum of its proper divisors (1).

21113030302193 is an equidigital number, since it uses as much as digits as its factorization.

21113030302193 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2916, while the sum is 29.

The spelling of 21113030302193 in words is "twenty-one trillion, one hundred thirteen billion, thirty million, three hundred two thousand, one hundred ninety-three".