21214053045193 has 2 divisors, whose sum is σ = 21214053045194. Its totient is φ = 21214053045192.

The previous prime is 21214053045191. The next prime is 21214053045319. The reversal of 21214053045193 is 39154035041212.

It is a happy number.

Together with next prime (21214053045319) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20355545170944 + 858507874249 = 4511712^2 + 926557^2 .

It is a cyclic number.

It is not a de Polignac number, because 21214053045193 - 2¹ = 21214053045191 is a prime.

Together with 21214053045191, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (21214053045191) 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, 10607026522596 + 10607026522597.

It is an arithmetic number, because the mean of its divisors is an integer number (10607026522597).

Almost surely, 2^{21214053045193} is an apocalyptic number.

It is an amenable number.

21214053045193 is a deficient number, since it is larger than the sum of its proper divisors (1).

21214053045193 is an equidigital number, since it uses as much as digits as its factorization.

21214053045193 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 129600, while the sum is 40.

The spelling of 21214053045193 in words is "twenty-one trillion, two hundred fourteen billion, fifty-three million, forty-five thousand, one hundred ninety-three".