19513282213 has 2 divisors, whose sum is σ = 19513282214. Its totient is φ = 19513282212.

The previous prime is 19513282211. The next prime is 19513282237. The reversal of 19513282213 is 31228231591.

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., 19015858404 + 497423809 = 137898^2 + 22303^2 .

It is a cyclic number.

It is not a de Polignac number, because 19513282213 - 2¹ = 19513282211 is a prime.

Together with 19513282211, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19513282211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9756641106 + 9756641107.

It is an arithmetic number, because the mean of its divisors is an integer number (9756641107).

Almost surely, 2^19513282213 is an apocalyptic number.

It is an amenable number.

19513282213 is a deficient number, since it is larger than the sum of its proper divisors (1).

19513282213 is an equidigital number, since it uses as much as digits as its factorization.

19513282213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25920, while the sum is 37.

The spelling of 19513282213 in words is "nineteen billion, five hundred thirteen million, two hundred eighty-two thousand, two hundred thirteen".