19202311213 has 2 divisors, whose sum is σ = 19202311214. Its totient is φ = 19202311212.

The previous prime is 19202311157. The next prime is 19202311229. The reversal of 19202311213 is 31211320291.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18846347524 + 355963689 = 137282^2 + 18867^2 .

It is an emirp because it is prime and its reverse (31211320291) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19202311213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19202311613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9601155606 + 9601155607.

It is an arithmetic number, because the mean of its divisors is an integer number (9601155607).

Almost surely, 2^19202311213 is an apocalyptic number.

It is an amenable number.

19202311213 is a deficient number, since it is larger than the sum of its proper divisors (1).

19202311213 is an equidigital number, since it uses as much as digits as its factorization.

19202311213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 25.

The spelling of 19202311213 in words is "nineteen billion, two hundred two million, three hundred eleven thousand, two hundred thirteen".