19020203422369 has 2 divisors, whose sum is σ = 19020203422370. Its totient is φ = 19020203422368.

The previous prime is 19020203422307. The next prime is 19020203422373. The reversal of 19020203422369 is 96322430202091.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12500290580625 + 6519912841744 = 3535575^2 + 2553412^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19020203422369 is a prime.

It is a super-2 number, since 2×19020203422369² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (19020203429369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9510101711184 + 9510101711185.

It is an arithmetic number, because the mean of its divisors is an integer number (9510101711185).

Almost surely, 2^{19020203422369} is an apocalyptic number.

It is an amenable number.

19020203422369 is a deficient number, since it is larger than the sum of its proper divisors (1).

19020203422369 is an equidigital number, since it uses as much as digits as its factorization.

19020203422369 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 279936, while the sum is 43.

The spelling of 19020203422369 in words is "nineteen trillion, twenty billion, two hundred three million, four hundred twenty-two thousand, three hundred sixty-nine".