19993000213 has 2 divisors, whose sum is σ = 19993000214. Its totient is φ = 19993000212.

The previous prime is 19993000189. The next prime is 19993000219. The reversal of 19993000213 is 31200039991.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14513743729 + 5479256484 = 120473^2 + 74022^2 .

It is a cyclic number.

It is not a de Polignac number, because 19993000213 - 2³³ = 11403065621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19993000219) 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, 9996500106 + 9996500107.

It is an arithmetic number, because the mean of its divisors is an integer number (9996500107).

Almost surely, 2^19993000213 is an apocalyptic number.

It is an amenable number.

19993000213 is a deficient number, since it is larger than the sum of its proper divisors (1).

19993000213 is an equidigital number, since it uses as much as digits as its factorization.

19993000213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13122, while the sum is 37.

The spelling of 19993000213 in words is "nineteen billion, nine hundred ninety-three million, two hundred thirteen", and thus it is an aban number.